diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d2e5d3c..b01e7468 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ The file format of it is based on [Keep a Changelog](http://keepachangelog.com/e
 For public Changelog covering all changes done to Pipedrive’s API, webhooks and app extensions platforms, see [public Changelog](https://pipedrive.readme.io/docs/changelog) with discussion area in [Developers Community](https://devcommunity.pipedrive.com/c/documentation/changelog/19).
 
 ## [Unreleased]
+### Fixed
+- Fixed the comma-separated `include_fields` query parameter across v2 collection/detail endpoints (`GET /api/v2/activities`, `GET /api/v2/activities/{id}`, `GET /api/v2/activityFields`, `GET /api/v2/activityFields/{field_code}`, `GET /api/v2/deals`, `GET /api/v2/deals/{id}`, `GET /api/v2/dealFields`, `GET /api/v2/dealFields/{field_code}`, `GET /api/v2/organizations`, `GET /api/v2/organizations/{id}`, `GET /api/v2/organizationFields`, `GET /api/v2/organizationFields/{field_code}`, `GET /api/v2/persons`, `GET /api/v2/persons/{id}`, `GET /api/v2/personFields`, `GET /api/v2/personFields/{field_code}`, `GET /api/v2/productFields`, and `GET /api/v2/productFields/{field_code}`) that was typed as `type: string` with an enum of comma-joined value combinations despite accepting comma-separated lists — changed to `type: array` of enumerated strings with `uniqueItems: true`, `style: form`, `explode: false`
+- Fixed the comma-separated `custom_fields` query parameter on v2 collection/detail endpoints (`GET /api/v2/deals`, `GET /api/v2/deals/archived`, `GET /api/v2/deals/{id}`, `GET /api/v2/organizations`, `GET /api/v2/organizations/{id}`, `GET /api/v2/persons`, `GET /api/v2/persons/{id}`, and `GET /api/v2/products`) and the `ids` query parameter on v2 collection endpoints (`GET /api/v2/activities`, `GET /api/v2/deals`, `GET /api/v2/deals/archived`, `GET /api/v2/organizations`, `GET /api/v2/persons`, and `GET /api/v2/products`) that were typed as `type: string` despite accepting comma-separated lists — changed to `type: array` of strings (`custom_fields` capped at 15 items, `ids` at 100) with `uniqueItems: true`, `style: form`, `explode: false`
 
 ## [33.9.0] - 2026-10-09
 ### Fixed
diff --git a/src/versions/v2/api/activities-api.ts b/src/versions/v2/api/activities-api.ts
index 130d4282..4fab8567 100644
--- a/src/versions/v2/api/activities-api.ts
+++ b/src/versions/v2/api/activities-api.ts
@@ -121,7 +121,7 @@ export const ActivitiesApiAxiosParamCreator = function (configuration?: Configur
          * Returns data about all activities.
          * @summary Get all activities
          * @param {number} [filter_id] If supplied, only activities matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only activities owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [deal_id] If supplied, only activities linked to the specified deal are returned. If filter_id is provided, this is ignored.
          * @param {string} [lead_id] If supplied, only activities linked to the specified lead are returned. If filter_id is provided, this is ignored.
@@ -132,13 +132,13 @@ export const ActivitiesApiAxiosParamCreator = function (configuration?: Configur
          * @param {string} [updated_until] If set, only activities with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time' | 'due_date'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;, &#x60;due_date&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'attendees'} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<'attendees'>} [include_fields] Optional comma separated string array of additional fields to include
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getActivities: async (filter_id?: number, ids?: string, owner_id?: number, deal_id?: number, lead_id?: string, person_id?: number, org_id?: number, done?: boolean, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time' | 'due_date', sort_direction?: 'asc' | 'desc', include_fields?: 'attendees', limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getActivities: async (filter_id?: number, ids?: Set<string>, owner_id?: number, deal_id?: number, lead_id?: string, person_id?: number, org_id?: number, done?: boolean, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time' | 'due_date', sort_direction?: 'asc' | 'desc', include_fields?: Set<'attendees'>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/activities`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -162,8 +162,8 @@ export const ActivitiesApiAxiosParamCreator = function (configuration?: Configur
                 localVarQueryParameter['filter_id'] = filter_id;
             }
 
-            if (ids !== undefined) {
-                localVarQueryParameter['ids'] = ids;
+            if (ids) {
+                localVarQueryParameter['ids'] = Array.from(ids).join(COLLECTION_FORMATS.csv);
             }
 
             if (owner_id !== undefined) {
@@ -206,8 +206,8 @@ export const ActivitiesApiAxiosParamCreator = function (configuration?: Configur
                 localVarQueryParameter['sort_direction'] = sort_direction;
             }
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -233,11 +233,11 @@ export const ActivitiesApiAxiosParamCreator = function (configuration?: Configur
          * Returns the details of a specific activity.
          * @summary Get details of an activity
          * @param {number} id The ID of the activity
-         * @param {'attendees'} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<'attendees'>} [include_fields] Optional comma separated string array of additional fields to include
 
          * @throws {RequiredError}
          */
-        getActivity: async (id: number, include_fields?: 'attendees', ): Promise<RequestArgs> => {
+        getActivity: async (id: number, include_fields?: Set<'attendees'>, ): Promise<RequestArgs> => {
             // verify required parameter 'id' is not null or undefined
             assertParamExists('getActivity', 'id', id)
             const localVarPath = `/activities/{id}`
@@ -260,8 +260,8 @@ export const ActivitiesApiAxiosParamCreator = function (configuration?: Configur
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["activities:read", "activities:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
 
@@ -357,7 +357,7 @@ export const ActivitiesApiFp = function(configuration?: Configuration) {
          * Returns data about all activities.
          * @summary Get all activities
          * @param {number} [filter_id] If supplied, only activities matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only activities owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [deal_id] If supplied, only activities linked to the specified deal are returned. If filter_id is provided, this is ignored.
          * @param {string} [lead_id] If supplied, only activities linked to the specified lead are returned. If filter_id is provided, this is ignored.
@@ -368,13 +368,13 @@ export const ActivitiesApiFp = function(configuration?: Configuration) {
          * @param {string} [updated_until] If set, only activities with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time' | 'due_date'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;, &#x60;due_date&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'attendees'} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<'attendees'>} [include_fields] Optional comma separated string array of additional fields to include
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getActivities(filter_id?: number, ids?: string, owner_id?: number, deal_id?: number, lead_id?: string, person_id?: number, org_id?: number, done?: boolean, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time' | 'due_date', sort_direction?: 'asc' | 'desc', include_fields?: 'attendees', limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivitiesResponse>> {
+        async getActivities(filter_id?: number, ids?: Set<string>, owner_id?: number, deal_id?: number, lead_id?: string, person_id?: number, org_id?: number, done?: boolean, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time' | 'due_date', sort_direction?: 'asc' | 'desc', include_fields?: Set<'attendees'>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivitiesResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getActivities(filter_id, ids, owner_id, deal_id, lead_id, person_id, org_id, done, updated_since, updated_until, sort_by, sort_direction, include_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -382,11 +382,11 @@ export const ActivitiesApiFp = function(configuration?: Configuration) {
          * Returns the details of a specific activity.
          * @summary Get details of an activity
          * @param {number} id The ID of the activity
-         * @param {'attendees'} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<'attendees'>} [include_fields] Optional comma separated string array of additional fields to include
 
          * @throws {RequiredError}
          */
-        async getActivity(id: number, include_fields?: 'attendees', ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertActivityResponse>> {
+        async getActivity(id: number, include_fields?: Set<'attendees'>, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertActivityResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getActivity(id, include_fields, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -508,10 +508,10 @@ export interface ActivitiesApiGetActivitiesRequest {
 
     /**
      * Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof ActivitiesApiGetActivities
      */
-    readonly ids?: string
+    readonly ids?: Set<string>
 
     /**
      * If supplied, only activities owned by the specified user are returned. If filter_id is provided, this is ignored.
@@ -585,10 +585,10 @@ export interface ActivitiesApiGetActivitiesRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'attendees'}
+     * @type {Set<'attendees'>}
      * @memberof ActivitiesApiGetActivities
      */
-    readonly include_fields?: 'attendees'
+    readonly include_fields?: Set<'attendees'>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -620,10 +620,10 @@ export interface ActivitiesApiGetActivityRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'attendees'}
+     * @type {Set<'attendees'>}
      * @memberof ActivitiesApiGetActivity
      */
-    readonly include_fields?: 'attendees'
+    readonly include_fields?: Set<'attendees'>
 }
 
 /**
diff --git a/src/versions/v2/api/activity-fields-api.ts b/src/versions/v2/api/activity-fields-api.ts
index 597a1648..72b93b4b 100644
--- a/src/versions/v2/api/activity-fields-api.ts
+++ b/src/versions/v2/api/activity-fields-api.ts
@@ -35,11 +35,11 @@ export const ActivityFieldsApiAxiosParamCreator = function (configuration?: Conf
          * Returns metadata about a specific activity field.
          * @summary Get one activity field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        getActivityField: async (field_code: string, include_fields?: 'ui_visibility', ): Promise<RequestArgs> => {
+        getActivityField: async (field_code: string, include_fields?: Set<'ui_visibility'>, ): Promise<RequestArgs> => {
             // verify required parameter 'field_code' is not null or undefined
             assertParamExists('getActivityField', 'field_code', field_code)
             const localVarPath = `/activityFields/{field_code}`
@@ -62,8 +62,8 @@ export const ActivityFieldsApiAxiosParamCreator = function (configuration?: Conf
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["admin"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
 
@@ -80,13 +80,13 @@ export const ActivityFieldsApiAxiosParamCreator = function (configuration?: Conf
         /**
          * Returns metadata about all activity fields in the company.
          * @summary Get all activity fields
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getActivityFields: async (include_fields?: 'ui_visibility', limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getActivityFields: async (include_fields?: Set<'ui_visibility'>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/activityFields`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -106,8 +106,8 @@ export const ActivityFieldsApiAxiosParamCreator = function (configuration?: Conf
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["admin"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -144,24 +144,24 @@ export const ActivityFieldsApiFp = function(configuration?: Configuration) {
          * Returns metadata about a specific activity field.
          * @summary Get one activity field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        async getActivityField(field_code: string, include_fields?: 'ui_visibility', ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityField200Response>> {
+        async getActivityField(field_code: string, include_fields?: Set<'ui_visibility'>, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityField200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getActivityField(field_code, include_fields, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
          * Returns metadata about all activity fields in the company.
          * @summary Get all activity fields
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getActivityFields(include_fields?: 'ui_visibility', limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityFields200Response>> {
+        async getActivityFields(include_fields?: Set<'ui_visibility'>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityFields200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getActivityFields(include_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -213,10 +213,10 @@ export interface ActivityFieldsApiGetActivityFieldRequest {
 
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility'}
+     * @type {Set<'ui_visibility'>}
      * @memberof ActivityFieldsApiGetActivityField
      */
-    readonly include_fields?: 'ui_visibility'
+    readonly include_fields?: Set<'ui_visibility'>
 }
 
 /**
@@ -227,10 +227,10 @@ export interface ActivityFieldsApiGetActivityFieldRequest {
 export interface ActivityFieldsApiGetActivityFieldsRequest {
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility'}
+     * @type {Set<'ui_visibility'>}
      * @memberof ActivityFieldsApiGetActivityFields
      */
-    readonly include_fields?: 'ui_visibility'
+    readonly include_fields?: Set<'ui_visibility'>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
diff --git a/src/versions/v2/api/deal-fields-api.ts b/src/versions/v2/api/deal-fields-api.ts
index f6a11bb5..5079b5a4 100644
--- a/src/versions/v2/api/deal-fields-api.ts
+++ b/src/versions/v2/api/deal-fields-api.ts
@@ -227,11 +227,11 @@ export const DealFieldsApiAxiosParamCreator = function (configuration?: Configur
          * Returns metadata about a specific deal field.
          * @summary Get one deal field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        getDealField: async (field_code: string, include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', ): Promise<RequestArgs> => {
+        getDealField: async (field_code: string, include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, ): Promise<RequestArgs> => {
             // verify required parameter 'field_code' is not null or undefined
             assertParamExists('getDealField', 'field_code', field_code)
             const localVarPath = `/dealFields/{field_code}`
@@ -254,8 +254,8 @@ export const DealFieldsApiAxiosParamCreator = function (configuration?: Configur
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["deals:read", "deals:full", "admin", "deal-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
 
@@ -272,13 +272,13 @@ export const DealFieldsApiAxiosParamCreator = function (configuration?: Configur
         /**
          * Returns metadata about all deal fields in the company.
          * @summary Get all deal fields
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getDealFields: async (include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getDealFields: async (include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/dealFields`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -298,8 +298,8 @@ export const DealFieldsApiAxiosParamCreator = function (configuration?: Configur
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["deals:read", "deals:full", "admin", "deal-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -476,24 +476,24 @@ export const DealFieldsApiFp = function(configuration?: Configuration) {
          * Returns metadata about a specific deal field.
          * @summary Get one deal field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        async getDealField(field_code: string, include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddDealField200Response>> {
+        async getDealField(field_code: string, include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddDealField200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getDealField(field_code, include_fields, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
          * Returns metadata about all deal fields in the company.
          * @summary Get all deal fields
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getDealFields(include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetDealFields200Response>> {
+        async getDealFields(include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetDealFields200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getDealFields(include_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -699,10 +699,10 @@ export interface DealFieldsApiGetDealFieldRequest {
 
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'}
+     * @type {Set<'ui_visibility' | 'important_fields' | 'required_fields'>}
      * @memberof DealFieldsApiGetDealField
      */
-    readonly include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'
+    readonly include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>
 }
 
 /**
@@ -713,10 +713,10 @@ export interface DealFieldsApiGetDealFieldRequest {
 export interface DealFieldsApiGetDealFieldsRequest {
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'}
+     * @type {Set<'ui_visibility' | 'important_fields' | 'required_fields'>}
      * @memberof DealFieldsApiGetDealFields
      */
-    readonly include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'
+    readonly include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
diff --git a/src/versions/v2/api/deals-api.ts b/src/versions/v2/api/deals-api.ts
index 7e2f7139..035e0006 100644
--- a/src/versions/v2/api/deals-api.ts
+++ b/src/versions/v2/api/deals-api.ts
@@ -370,7 +370,7 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
          * Returns data about all archived deals.
          * @summary Get all archived deals
          * @param {number} [filter_id] If supplied, only deals matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only deals owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [person_id] If supplied, only deals linked to the specified person are returned. If filter_id is provided, this is ignored.
          * @param {number} [org_id] If supplied, only deals linked to the specified organization are returned. If filter_id is provided, this is ignored.
@@ -381,14 +381,14 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
          * @param {string} [updated_until] If set, only deals with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getArchivedDeals: async (filter_id?: number, ids?: string, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id', custom_fields?: string, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getArchivedDeals: async (filter_id?: number, ids?: Set<string>, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>, custom_fields?: Set<string>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/deals/archived`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -412,8 +412,8 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
                 localVarQueryParameter['filter_id'] = filter_id;
             }
 
-            if (ids !== undefined) {
-                localVarQueryParameter['ids'] = ids;
+            if (ids) {
+                localVarQueryParameter['ids'] = Array.from(ids).join(COLLECTION_FORMATS.csv);
             }
 
             if (owner_id !== undefined) {
@@ -456,12 +456,12 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
                 localVarQueryParameter['sort_direction'] = sort_direction;
             }
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -487,14 +487,14 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
          * Returns the details of a specific deal.
          * @summary Get details of a deal
          * @param {number} id The ID of the deal
-         * @param {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
 
          * @throws {RequiredError}
          */
-        getDeal: async (id: number, include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, ): Promise<RequestArgs> => {
+        getDeal: async (id: number, include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, ): Promise<RequestArgs> => {
             // verify required parameter 'id' is not null or undefined
             assertParamExists('getDeal', 'id', id)
             const localVarPath = `/deals/{id}`
@@ -517,12 +517,12 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["deals:read", "deals:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (include_option_labels !== undefined) {
@@ -695,7 +695,7 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
          * Returns data about all not archived deals.
          * @summary Get all deals
          * @param {number} [filter_id] If supplied, only deals matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only deals owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [person_id] If supplied, only deals linked to the specified person are returned. If filter_id is provided, this is ignored.
          * @param {number} [org_id] If supplied, only deals linked to the specified organization are returned. If filter_id is provided, this is ignored.
@@ -706,8 +706,8 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
          * @param {string} [updated_until] If set, only deals with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -715,7 +715,7 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
 
          * @throws {RequiredError}
          */
-        getDeals: async (filter_id?: number, ids?: string, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getDeals: async (filter_id?: number, ids?: Set<string>, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/deals`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -739,8 +739,8 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
                 localVarQueryParameter['filter_id'] = filter_id;
             }
 
-            if (ids !== undefined) {
-                localVarQueryParameter['ids'] = ids;
+            if (ids) {
+                localVarQueryParameter['ids'] = Array.from(ids).join(COLLECTION_FORMATS.csv);
             }
 
             if (owner_id !== undefined) {
@@ -783,12 +783,12 @@ export const DealsApiAxiosParamCreator = function (configuration?: Configuration
                 localVarQueryParameter['sort_direction'] = sort_direction;
             }
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (include_option_labels !== undefined) {
@@ -1136,7 +1136,7 @@ export const DealsApiFp = function(configuration?: Configuration) {
          * Returns data about all archived deals.
          * @summary Get all archived deals
          * @param {number} [filter_id] If supplied, only deals matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only deals owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [person_id] If supplied, only deals linked to the specified person are returned. If filter_id is provided, this is ignored.
          * @param {number} [org_id] If supplied, only deals linked to the specified organization are returned. If filter_id is provided, this is ignored.
@@ -1147,14 +1147,14 @@ export const DealsApiFp = function(configuration?: Configuration) {
          * @param {string} [updated_until] If set, only deals with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getArchivedDeals(filter_id?: number, ids?: string, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id', custom_fields?: string, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetDealsResponse>> {
+        async getArchivedDeals(filter_id?: number, ids?: Set<string>, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>, custom_fields?: Set<string>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetDealsResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getArchivedDeals(filter_id, ids, owner_id, person_id, org_id, pipeline_id, stage_id, status, updated_since, updated_until, sort_by, sort_direction, include_fields, custom_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -1162,14 +1162,14 @@ export const DealsApiFp = function(configuration?: Configuration) {
          * Returns the details of a specific deal.
          * @summary Get details of a deal
          * @param {number} id The ID of the deal
-         * @param {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
 
          * @throws {RequiredError}
          */
-        async getDeal(id: number, include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertDealResponse>> {
+        async getDeal(id: number, include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertDealResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getDeal(id, include_fields, custom_fields, include_option_labels, include_labels, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -1215,7 +1215,7 @@ export const DealsApiFp = function(configuration?: Configuration) {
          * Returns data about all not archived deals.
          * @summary Get all deals
          * @param {number} [filter_id] If supplied, only deals matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only deals owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [person_id] If supplied, only deals linked to the specified person are returned. If filter_id is provided, this is ignored.
          * @param {number} [org_id] If supplied, only deals linked to the specified organization are returned. If filter_id is provided, this is ignored.
@@ -1226,8 +1226,8 @@ export const DealsApiFp = function(configuration?: Configuration) {
          * @param {string} [updated_until] If set, only deals with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -1235,7 +1235,7 @@ export const DealsApiFp = function(configuration?: Configuration) {
 
          * @throws {RequiredError}
          */
-        async getDeals(filter_id?: number, ids?: string, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetDealsResponse>> {
+        async getDeals(filter_id?: number, ids?: Set<string>, owner_id?: number, person_id?: number, org_id?: number, pipeline_id?: number, stage_id?: number, status?: 'open' | 'won' | 'lost' | 'deleted', updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetDealsResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getDeals(filter_id, ids, owner_id, person_id, org_id, pipeline_id, stage_id, status, updated_since, updated_until, sort_by, sort_direction, include_fields, custom_fields, include_option_labels, include_labels, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -1612,10 +1612,10 @@ export interface DealsApiGetArchivedDealsRequest {
 
     /**
      * Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof DealsApiGetArchivedDeals
      */
-    readonly ids?: string
+    readonly ids?: Set<string>
 
     /**
      * If supplied, only deals owned by the specified user are returned. If filter_id is provided, this is ignored.
@@ -1689,17 +1689,17 @@ export interface DealsApiGetArchivedDealsRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>}
      * @memberof DealsApiGetArchivedDeals
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof DealsApiGetArchivedDeals
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -1731,17 +1731,17 @@ export interface DealsApiGetDealRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>}
      * @memberof DealsApiGetDeal
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof DealsApiGetDeal
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
@@ -1850,10 +1850,10 @@ export interface DealsApiGetDealsRequest {
 
     /**
      * Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof DealsApiGetDeals
      */
-    readonly ids?: string
+    readonly ids?: Set<string>
 
     /**
      * If supplied, only deals owned by the specified user are returned. If filter_id is provided, this is ignored.
@@ -1927,17 +1927,17 @@ export interface DealsApiGetDealsRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>}
      * @memberof DealsApiGetDeals
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'first_won_time' | 'products_count' | 'files_count' | 'notes_count' | 'followers_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'participants_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'smart_bcc_email' | 'source_lead_id'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof DealsApiGetDeals
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
diff --git a/src/versions/v2/api/organization-fields-api.ts b/src/versions/v2/api/organization-fields-api.ts
index ad901ea8..f4290ab0 100644
--- a/src/versions/v2/api/organization-fields-api.ts
+++ b/src/versions/v2/api/organization-fields-api.ts
@@ -227,11 +227,11 @@ export const OrganizationFieldsApiAxiosParamCreator = function (configuration?:
          * Returns metadata about a specific organization field.
          * @summary Get one organization field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        getOrganizationField: async (field_code: string, include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', ): Promise<RequestArgs> => {
+        getOrganizationField: async (field_code: string, include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, ): Promise<RequestArgs> => {
             // verify required parameter 'field_code' is not null or undefined
             assertParamExists('getOrganizationField', 'field_code', field_code)
             const localVarPath = `/organizationFields/{field_code}`
@@ -254,8 +254,8 @@ export const OrganizationFieldsApiAxiosParamCreator = function (configuration?:
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["contacts:read", "contacts:full", "admin", "contact-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
 
@@ -272,13 +272,13 @@ export const OrganizationFieldsApiAxiosParamCreator = function (configuration?:
         /**
          * Returns metadata about all organization fields in the company.
          * @summary Get all organization fields
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getOrganizationFields: async (include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getOrganizationFields: async (include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/organizationFields`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -298,8 +298,8 @@ export const OrganizationFieldsApiAxiosParamCreator = function (configuration?:
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["contacts:read", "contacts:full", "admin", "contact-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -476,24 +476,24 @@ export const OrganizationFieldsApiFp = function(configuration?: Configuration) {
          * Returns metadata about a specific organization field.
          * @summary Get one organization field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        async getOrganizationField(field_code: string, include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddOrganizationField200Response>> {
+        async getOrganizationField(field_code: string, include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddOrganizationField200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getOrganizationField(field_code, include_fields, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
          * Returns metadata about all organization fields in the company.
          * @summary Get all organization fields
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getOrganizationFields(include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetOrganizationFields200Response>> {
+        async getOrganizationFields(include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetOrganizationFields200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getOrganizationFields(include_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -699,10 +699,10 @@ export interface OrganizationFieldsApiGetOrganizationFieldRequest {
 
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'}
+     * @type {Set<'ui_visibility' | 'important_fields' | 'required_fields'>}
      * @memberof OrganizationFieldsApiGetOrganizationField
      */
-    readonly include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'
+    readonly include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>
 }
 
 /**
@@ -713,10 +713,10 @@ export interface OrganizationFieldsApiGetOrganizationFieldRequest {
 export interface OrganizationFieldsApiGetOrganizationFieldsRequest {
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'}
+     * @type {Set<'ui_visibility' | 'important_fields' | 'required_fields'>}
      * @memberof OrganizationFieldsApiGetOrganizationFields
      */
-    readonly include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'
+    readonly include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
diff --git a/src/versions/v2/api/organizations-api.ts b/src/versions/v2/api/organizations-api.ts
index 1f2c23dc..7d2d2f83 100644
--- a/src/versions/v2/api/organizations-api.ts
+++ b/src/versions/v2/api/organizations-api.ts
@@ -225,14 +225,14 @@ export const OrganizationsApiAxiosParamCreator = function (configuration?: Confi
          * Returns the details of a specific organization.
          * @summary Get details of a organization
          * @param {number} id The ID of the organization
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
 
          * @throws {RequiredError}
          */
-        getOrganization: async (id: number, include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, ): Promise<RequestArgs> => {
+        getOrganization: async (id: number, include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, ): Promise<RequestArgs> => {
             // verify required parameter 'id' is not null or undefined
             assertParamExists('getOrganization', 'id', id)
             const localVarPath = `/organizations/{id}`
@@ -255,12 +255,12 @@ export const OrganizationsApiAxiosParamCreator = function (configuration?: Confi
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["contacts:read", "contacts:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (include_option_labels !== undefined) {
@@ -388,14 +388,14 @@ export const OrganizationsApiAxiosParamCreator = function (configuration?: Confi
          * Returns data about all organizations.
          * @summary Get all organizations
          * @param {number} [filter_id] If supplied, only organizations matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only organizations owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {string} [updated_since] If set, only organizations with an &#x60;update_time&#x60; later than or equal to this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {string} [updated_until] If set, only organizations with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -403,7 +403,7 @@ export const OrganizationsApiAxiosParamCreator = function (configuration?: Confi
 
          * @throws {RequiredError}
          */
-        getOrganizations: async (filter_id?: number, ids?: string, owner_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getOrganizations: async (filter_id?: number, ids?: Set<string>, owner_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/organizations`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -427,8 +427,8 @@ export const OrganizationsApiAxiosParamCreator = function (configuration?: Confi
                 localVarQueryParameter['filter_id'] = filter_id;
             }
 
-            if (ids !== undefined) {
-                localVarQueryParameter['ids'] = ids;
+            if (ids) {
+                localVarQueryParameter['ids'] = Array.from(ids).join(COLLECTION_FORMATS.csv);
             }
 
             if (owner_id !== undefined) {
@@ -451,12 +451,12 @@ export const OrganizationsApiAxiosParamCreator = function (configuration?: Confi
                 localVarQueryParameter['sort_direction'] = sort_direction;
             }
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (include_option_labels !== undefined) {
@@ -656,14 +656,14 @@ export const OrganizationsApiFp = function(configuration?: Configuration) {
          * Returns the details of a specific organization.
          * @summary Get details of a organization
          * @param {number} id The ID of the organization
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
 
          * @throws {RequiredError}
          */
-        async getOrganization(id: number, include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertOrganizationResponse>> {
+        async getOrganization(id: number, include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertOrganizationResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getOrganization(id, include_fields, custom_fields, include_option_labels, include_labels, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -697,14 +697,14 @@ export const OrganizationsApiFp = function(configuration?: Configuration) {
          * Returns data about all organizations.
          * @summary Get all organizations
          * @param {number} [filter_id] If supplied, only organizations matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only organizations owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {string} [updated_since] If set, only organizations with an &#x60;update_time&#x60; later than or equal to this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {string} [updated_until] If set, only organizations with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -712,7 +712,7 @@ export const OrganizationsApiFp = function(configuration?: Configuration) {
 
          * @throws {RequiredError}
          */
-        async getOrganizations(filter_id?: number, ids?: string, owner_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetOrganizationsResponse>> {
+        async getOrganizations(filter_id?: number, ids?: Set<string>, owner_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetOrganizationsResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getOrganizations(filter_id, ids, owner_id, updated_since, updated_until, sort_by, sort_direction, include_fields, custom_fields, include_option_labels, include_labels, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -941,17 +941,17 @@ export interface OrganizationsApiGetOrganizationRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>}
      * @memberof OrganizationsApiGetOrganization
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof OrganizationsApiGetOrganization
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
@@ -1039,10 +1039,10 @@ export interface OrganizationsApiGetOrganizationsRequest {
 
     /**
      * Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof OrganizationsApiGetOrganizations
      */
-    readonly ids?: string
+    readonly ids?: Set<string>
 
     /**
      * If supplied, only organizations owned by the specified user are returned. If filter_id is provided, this is ignored.
@@ -1081,17 +1081,17 @@ export interface OrganizationsApiGetOrganizationsRequest {
 
     /**
      * Optional comma separated string array of additional fields to include
-     * @type {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>}
      * @memberof OrganizationsApiGetOrganizations
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'email_messages_count' | 'people_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'smart_bcc_email'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof OrganizationsApiGetOrganizations
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
diff --git a/src/versions/v2/api/person-fields-api.ts b/src/versions/v2/api/person-fields-api.ts
index ba4cbcbd..2571162c 100644
--- a/src/versions/v2/api/person-fields-api.ts
+++ b/src/versions/v2/api/person-fields-api.ts
@@ -227,11 +227,11 @@ export const PersonFieldsApiAxiosParamCreator = function (configuration?: Config
          * Returns metadata about a specific person field.
          * @summary Get one person field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        getPersonField: async (field_code: string, include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', ): Promise<RequestArgs> => {
+        getPersonField: async (field_code: string, include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, ): Promise<RequestArgs> => {
             // verify required parameter 'field_code' is not null or undefined
             assertParamExists('getPersonField', 'field_code', field_code)
             const localVarPath = `/personFields/{field_code}`
@@ -254,8 +254,8 @@ export const PersonFieldsApiAxiosParamCreator = function (configuration?: Config
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["contacts:read", "contacts:full", "admin", "contact-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
 
@@ -272,13 +272,13 @@ export const PersonFieldsApiAxiosParamCreator = function (configuration?: Config
         /**
          * Returns metadata about all person fields in the company.
          * @summary Get all person fields
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getPersonFields: async (include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getPersonFields: async (include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/personFields`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -298,8 +298,8 @@ export const PersonFieldsApiAxiosParamCreator = function (configuration?: Config
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["contacts:read", "contacts:full", "admin", "contact-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -476,24 +476,24 @@ export const PersonFieldsApiFp = function(configuration?: Configuration) {
          * Returns metadata about a specific person field.
          * @summary Get one person field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        async getPersonField(field_code: string, include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddPersonField200Response>> {
+        async getPersonField(field_code: string, include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<AddPersonField200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getPersonField(field_code, include_fields, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
          * Returns metadata about all person fields in the company.
          * @summary Get all person fields
-         * @param {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility' | 'important_fields' | 'required_fields'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getPersonFields(include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields', limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetPersonFields200Response>> {
+        async getPersonFields(include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetPersonFields200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getPersonFields(include_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -699,10 +699,10 @@ export interface PersonFieldsApiGetPersonFieldRequest {
 
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'}
+     * @type {Set<'ui_visibility' | 'important_fields' | 'required_fields'>}
      * @memberof PersonFieldsApiGetPersonField
      */
-    readonly include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'
+    readonly include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>
 }
 
 /**
@@ -713,10 +713,10 @@ export interface PersonFieldsApiGetPersonFieldRequest {
 export interface PersonFieldsApiGetPersonFieldsRequest {
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'}
+     * @type {Set<'ui_visibility' | 'important_fields' | 'required_fields'>}
      * @memberof PersonFieldsApiGetPersonFields
      */
-    readonly include_fields?: 'ui_visibility' | 'important_fields' | 'required_fields' | 'ui_visibility,important_fields' | 'ui_visibility,required_fields' | 'important_fields,required_fields' | 'ui_visibility,important_fields,required_fields'
+    readonly include_fields?: Set<'ui_visibility' | 'important_fields' | 'required_fields'>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
diff --git a/src/versions/v2/api/persons-api.ts b/src/versions/v2/api/persons-api.ts
index 44d34ce8..6beb1548 100644
--- a/src/versions/v2/api/persons-api.ts
+++ b/src/versions/v2/api/persons-api.ts
@@ -227,14 +227,14 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
          * Returns the details of a specific person. Fields `ims`, `postal_address`, `notes`, `birthday`, and `job_title` are only included if contact sync is enabled for the company.
          * @summary Get details of a person
          * @param {number} id The ID of the person
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
 
          * @throws {RequiredError}
          */
-        getPerson: async (id: number, include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, ): Promise<RequestArgs> => {
+        getPerson: async (id: number, include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, ): Promise<RequestArgs> => {
             // verify required parameter 'id' is not null or undefined
             assertParamExists('getPerson', 'id', id)
             const localVarPath = `/persons/{id}`
@@ -257,12 +257,12 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["contacts:read", "contacts:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (include_option_labels !== undefined) {
@@ -431,7 +431,7 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
          * Returns data about all persons. Fields `ims`, `postal_address`, `notes`, `birthday`, and `job_title` are only included if contact sync is enabled for the company.
          * @summary Get all persons
          * @param {number} [filter_id] If supplied, only persons matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only persons owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [org_id] If supplied, only persons linked to the specified organization are returned. If filter_id is provided, this is ignored.
          * @param {number} [deal_id] If supplied, only persons linked to the specified deal are returned. If filter_id is provided, this is ignored.
@@ -439,8 +439,8 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
          * @param {string} [updated_until] If set, only persons with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -448,7 +448,7 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
 
          * @throws {RequiredError}
          */
-        getPersons: async (filter_id?: number, ids?: string, owner_id?: number, org_id?: number, deal_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getPersons: async (filter_id?: number, ids?: Set<string>, owner_id?: number, org_id?: number, deal_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/persons`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -472,8 +472,8 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
                 localVarQueryParameter['filter_id'] = filter_id;
             }
 
-            if (ids !== undefined) {
-                localVarQueryParameter['ids'] = ids;
+            if (ids) {
+                localVarQueryParameter['ids'] = Array.from(ids).join(COLLECTION_FORMATS.csv);
             }
 
             if (owner_id !== undefined) {
@@ -504,12 +504,12 @@ export const PersonsApiAxiosParamCreator = function (configuration?: Configurati
                 localVarQueryParameter['sort_direction'] = sort_direction;
             }
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (include_option_labels !== undefined) {
@@ -719,14 +719,14 @@ export const PersonsApiFp = function(configuration?: Configuration) {
          * Returns the details of a specific person. Fields `ims`, `postal_address`, `notes`, `birthday`, and `job_title` are only included if contact sync is enabled for the company.
          * @summary Get details of a person
          * @param {number} id The ID of the person
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
 
          * @throws {RequiredError}
          */
-        async getPerson(id: number, include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertPersonResponse>> {
+        async getPerson(id: number, include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<UpsertPersonResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getPerson(id, include_fields, custom_fields, include_option_labels, include_labels, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -771,7 +771,7 @@ export const PersonsApiFp = function(configuration?: Configuration) {
          * Returns data about all persons. Fields `ims`, `postal_address`, `notes`, `birthday`, and `job_title` are only included if contact sync is enabled for the company.
          * @summary Get all persons
          * @param {number} [filter_id] If supplied, only persons matching the specified filter are returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
          * @param {number} [owner_id] If supplied, only persons owned by the specified user are returned. If filter_id is provided, this is ignored.
          * @param {number} [org_id] If supplied, only persons linked to the specified organization are returned. If filter_id is provided, this is ignored.
          * @param {number} [deal_id] If supplied, only persons linked to the specified deal are returned. If filter_id is provided, this is ignored.
@@ -779,8 +779,8 @@ export const PersonsApiFp = function(configuration?: Configuration) {
          * @param {string} [updated_until] If set, only persons with an &#x60;update_time&#x60; earlier than this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
          * @param {'id' | 'update_time' | 'add_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;update_time&#x60;, &#x60;add_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
-         * @param {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
-         * @param {string} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+         * @param {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>} [include_fields] Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {boolean} [include_option_labels] When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
          * @param {boolean} [include_labels] When provided with \&#39;true\&#39; value, response will include an array of label objects in the form of \&#39;{ id: number, label: string }\&#39;
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
@@ -788,7 +788,7 @@ export const PersonsApiFp = function(configuration?: Configuration) {
 
          * @throws {RequiredError}
          */
-        async getPersons(filter_id?: number, ids?: string, owner_id?: number, org_id?: number, deal_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email', custom_fields?: string, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetPersonsResponse>> {
+        async getPersons(filter_id?: number, ids?: Set<string>, owner_id?: number, org_id?: number, deal_id?: number, updated_since?: string, updated_until?: string, sort_by?: 'id' | 'update_time' | 'add_time', sort_direction?: 'asc' | 'desc', include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>, custom_fields?: Set<string>, include_option_labels?: boolean, include_labels?: boolean, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetPersonsResponse>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getPersons(filter_id, ids, owner_id, org_id, deal_id, updated_since, updated_until, sort_by, sort_direction, include_fields, custom_fields, include_option_labels, include_labels, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -1029,17 +1029,17 @@ export interface PersonsApiGetPersonRequest {
 
     /**
      * Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
-     * @type {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>}
      * @memberof PersonsApiGetPerson
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof PersonsApiGetPerson
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
@@ -1141,10 +1141,10 @@ export interface PersonsApiGetPersonsRequest {
 
     /**
      * Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof PersonsApiGetPersons
      */
-    readonly ids?: string
+    readonly ids?: Set<string>
 
     /**
      * If supplied, only persons owned by the specified user are returned. If filter_id is provided, this is ignored.
@@ -1197,17 +1197,17 @@ export interface PersonsApiGetPersonsRequest {
 
     /**
      * Optional comma separated string array of additional fields to include. &#x60;marketing_status&#x60; and &#x60;doi_status&#x60; can only be included if the company has marketing app enabled.
-     * @type {'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'}
+     * @type {Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>}
      * @memberof PersonsApiGetPersons
      */
-    readonly include_fields?: 'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'
+    readonly include_fields?: Set<'next_activity_id' | 'last_activity_id' | 'open_deals_count' | 'related_open_deals_count' | 'closed_deals_count' | 'related_closed_deals_count' | 'participant_open_deals_count' | 'participant_closed_deals_count' | 'email_messages_count' | 'activities_count' | 'done_activities_count' | 'undone_activities_count' | 'files_count' | 'notes_count' | 'followers_count' | 'won_deals_count' | 'related_won_deals_count' | 'lost_deals_count' | 'related_lost_deals_count' | 'last_incoming_mail_time' | 'last_outgoing_mail_time' | 'marketing_status' | 'doi_status' | 'smart_bcc_email'>
 
     /**
      * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
+     * @type {Set<string>}
      * @memberof PersonsApiGetPersons
      */
-    readonly custom_fields?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * When provided with a \&#39;true\&#39; value, single option and multiple option custom fields values contain objects in the form of \&#39;{ id: number, label: string }\&#39; instead of plain id
diff --git a/src/versions/v2/api/product-fields-api.ts b/src/versions/v2/api/product-fields-api.ts
index 82df24ce..e0fb5c4d 100644
--- a/src/versions/v2/api/product-fields-api.ts
+++ b/src/versions/v2/api/product-fields-api.ts
@@ -227,11 +227,11 @@ export const ProductFieldsApiAxiosParamCreator = function (configuration?: Confi
          * Returns metadata about a specific product field.
          * @summary Get one product field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        getProductField: async (field_code: string, include_fields?: 'ui_visibility', ): Promise<RequestArgs> => {
+        getProductField: async (field_code: string, include_fields?: Set<'ui_visibility'>, ): Promise<RequestArgs> => {
             // verify required parameter 'field_code' is not null or undefined
             assertParamExists('getProductField', 'field_code', field_code)
             const localVarPath = `/productFields/{field_code}`
@@ -254,8 +254,8 @@ export const ProductFieldsApiAxiosParamCreator = function (configuration?: Confi
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["products:read", "products:full", "product-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
 
@@ -272,13 +272,13 @@ export const ProductFieldsApiAxiosParamCreator = function (configuration?: Confi
         /**
          * Returns metadata about all product fields in the company.
          * @summary Get all product fields
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        getProductFields: async (include_fields?: 'ui_visibility', limit?: number, cursor?: string, ): Promise<RequestArgs> => {
+        getProductFields: async (include_fields?: Set<'ui_visibility'>, limit?: number, cursor?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/productFields`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -298,8 +298,8 @@ export const ProductFieldsApiAxiosParamCreator = function (configuration?: Confi
             // oauth required
             await setOAuthToObject(localVarHeaderParameter, "oauth2", ["products:read", "products:full", "product-fields:full"], configuration)
 
-            if (include_fields !== undefined) {
-                localVarQueryParameter['include_fields'] = include_fields;
+            if (include_fields) {
+                localVarQueryParameter['include_fields'] = Array.from(include_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (limit !== undefined) {
@@ -476,24 +476,24 @@ export const ProductFieldsApiFp = function(configuration?: Configuration) {
          * Returns metadata about a specific product field.
          * @summary Get one product field
          * @param {string} field_code The unique code identifying the field
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
 
          * @throws {RequiredError}
          */
-        async getProductField(field_code: string, include_fields?: 'ui_visibility', ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityField200Response>> {
+        async getProductField(field_code: string, include_fields?: Set<'ui_visibility'>, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityField200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getProductField(field_code, include_fields, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
          * Returns metadata about all product fields in the company.
          * @summary Get all product fields
-         * @param {'ui_visibility'} [include_fields] Optional comma separated string array of additional data namespaces to include in response
+         * @param {Set<'ui_visibility'>} [include_fields] Optional comma separated string array of additional data namespaces to include in response
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
 
          * @throws {RequiredError}
          */
-        async getProductFields(include_fields?: 'ui_visibility', limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityFields200Response>> {
+        async getProductFields(include_fields?: Set<'ui_visibility'>, limit?: number, cursor?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetActivityFields200Response>> {
             const localVarAxiosArgs = await localVarAxiosParamCreator.getProductFields(include_fields, limit, cursor, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
@@ -699,10 +699,10 @@ export interface ProductFieldsApiGetProductFieldRequest {
 
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility'}
+     * @type {Set<'ui_visibility'>}
      * @memberof ProductFieldsApiGetProductField
      */
-    readonly include_fields?: 'ui_visibility'
+    readonly include_fields?: Set<'ui_visibility'>
 }
 
 /**
@@ -713,10 +713,10 @@ export interface ProductFieldsApiGetProductFieldRequest {
 export interface ProductFieldsApiGetProductFieldsRequest {
     /**
      * Optional comma separated string array of additional data namespaces to include in response
-     * @type {'ui_visibility'}
+     * @type {Set<'ui_visibility'>}
      * @memberof ProductFieldsApiGetProductFields
      */
-    readonly include_fields?: 'ui_visibility'
+    readonly include_fields?: Set<'ui_visibility'>
 
     /**
      * For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
diff --git a/src/versions/v2/api/products-api.ts b/src/versions/v2/api/products-api.ts
index dfd63ca7..2ed2d959 100644
--- a/src/versions/v2/api/products-api.ts
+++ b/src/versions/v2/api/products-api.ts
@@ -652,18 +652,18 @@ export const ProductsApiAxiosParamCreator = function (configuration?: Configurat
          * Returns data about all products.
          * @summary Get all products
          * @param {number} [owner_id] If supplied, only products owned by the given user will be returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {number} [filter_id] The ID of the filter to use
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {'id' | 'name' | 'add_time' | 'update_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;name&#x60;, &#x60;add_time&#x60;, &#x60;update_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
          * @param {string} [updated_since] If set, only products with an &#x60;update_time&#x60; later than or equal to this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
-         * @param {string} [custom_fields] Comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for a smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
 
          * @throws {RequiredError}
          */
-        getProducts: async (owner_id?: number, ids?: string, filter_id?: number, cursor?: string, limit?: number, sort_by?: 'id' | 'name' | 'add_time' | 'update_time', sort_direction?: 'asc' | 'desc', updated_since?: string, custom_fields?: string, ): Promise<RequestArgs> => {
+        getProducts: async (owner_id?: number, ids?: Set<string>, custom_fields?: Set<string>, filter_id?: number, cursor?: string, limit?: number, sort_by?: 'id' | 'name' | 'add_time' | 'update_time', sort_direction?: 'asc' | 'desc', updated_since?: string, ): Promise<RequestArgs> => {
             const localVarPath = `/products`;
             // use dummy base URL string because the URL constructor only accepts absolute URLs.
             const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
@@ -687,8 +687,12 @@ export const ProductsApiAxiosParamCreator = function (configuration?: Configurat
                 localVarQueryParameter['owner_id'] = owner_id;
             }
 
-            if (ids !== undefined) {
-                localVarQueryParameter['ids'] = ids;
+            if (ids) {
+                localVarQueryParameter['ids'] = Array.from(ids).join(COLLECTION_FORMATS.csv);
+            }
+
+            if (custom_fields) {
+                localVarQueryParameter['custom_fields'] = Array.from(custom_fields).join(COLLECTION_FORMATS.csv);
             }
 
             if (filter_id !== undefined) {
@@ -715,10 +719,6 @@ export const ProductsApiAxiosParamCreator = function (configuration?: Configurat
                 localVarQueryParameter['updated_since'] = updated_since;
             }
 
-            if (custom_fields !== undefined) {
-                localVarQueryParameter['custom_fields'] = custom_fields;
-            }
-
 
     
             setSearchParams(localVarUrlObj, localVarQueryParameter);
@@ -1165,19 +1165,19 @@ export const ProductsApiFp = function(configuration?: Configuration) {
          * Returns data about all products.
          * @summary Get all products
          * @param {number} [owner_id] If supplied, only products owned by the given user will be returned
-         * @param {string} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [ids] Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
+         * @param {Set<string>} [custom_fields] Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
          * @param {number} [filter_id] The ID of the filter to use
          * @param {string} [cursor] For pagination, the marker (an opaque string value) representing the first item on the next page
          * @param {number} [limit] For pagination, the limit of entries to be returned. If not provided, 100 items will be returned. Please note that a maximum value of 500 is allowed.
          * @param {'id' | 'name' | 'add_time' | 'update_time'} [sort_by] The field to sort by. Supported fields: &#x60;id&#x60;, &#x60;name&#x60;, &#x60;add_time&#x60;, &#x60;update_time&#x60;.
          * @param {'asc' | 'desc'} [sort_direction] The sorting direction. Supported values: &#x60;asc&#x60;, &#x60;desc&#x60;.
          * @param {string} [updated_since] If set, only products with an &#x60;update_time&#x60; later than or equal to this time are returned. In RFC3339 format, e.g. 2025-01-01T10:20:00Z.
-         * @param {string} [custom_fields] Comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for a smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
 
          * @throws {RequiredError}
          */
-        async getProducts(owner_id?: number, ids?: string, filter_id?: number, cursor?: string, limit?: number, sort_by?: 'id' | 'name' | 'add_time' | 'update_time', sort_direction?: 'asc' | 'desc', updated_since?: string, custom_fields?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetProductsResponse>> {
-            const localVarAxiosArgs = await localVarAxiosParamCreator.getProducts(owner_id, ids, filter_id, cursor, limit, sort_by, sort_direction, updated_since, custom_fields, );
+        async getProducts(owner_id?: number, ids?: Set<string>, custom_fields?: Set<string>, filter_id?: number, cursor?: string, limit?: number, sort_by?: 'id' | 'name' | 'add_time' | 'update_time', sort_direction?: 'asc' | 'desc', updated_since?: string, ): Promise<(axios?: AxiosInstance, basePath?: string) => Promise<GetProductsResponse>> {
+            const localVarAxiosArgs = await localVarAxiosParamCreator.getProducts(owner_id, ids, custom_fields, filter_id, cursor, limit, sort_by, sort_direction, updated_since, );
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
         /**
@@ -1393,7 +1393,7 @@ export const ProductsApiFactory = function (configuration?: Configuration, baseP
          * @throws {RequiredError}
          */
         getProducts(requestParameters: ProductsApiGetProductsRequest = {}, ): Promise<GetProductsResponse> {
-            return localVarFp.getProducts(requestParameters.owner_id, requestParameters.ids, requestParameters.filter_id, requestParameters.cursor, requestParameters.limit, requestParameters.sort_by, requestParameters.sort_direction, requestParameters.updated_since, requestParameters.custom_fields, ).then((request) => request(axios, basePath));
+            return localVarFp.getProducts(requestParameters.owner_id, requestParameters.ids, requestParameters.custom_fields, requestParameters.filter_id, requestParameters.cursor, requestParameters.limit, requestParameters.sort_by, requestParameters.sort_direction, requestParameters.updated_since, ).then((request) => request(axios, basePath));
         },
         /**
          * Searches all products by name, code and/or custom fields. This endpoint is a wrapper of <a href=\"https://developers.pipedrive.com/docs/api/v1/ItemSearch#searchItem\">/v1/itemSearch</a> with a narrower OAuth scope.
@@ -1715,10 +1715,17 @@ export interface ProductsApiGetProductsRequest {
 
     /**
      * Optional comma separated string array of up to 100 entity ids to fetch. If filter_id is provided, this is ignored. If any of the requested entities do not exist or are not visible, they are not included in the response.
-     * @type {string}
+     * @type {Set<string>}
+     * @memberof ProductsApiGetProducts
+     */
+    readonly ids?: Set<string>
+
+    /**
+     * Optional comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for faster results and smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
+     * @type {Set<string>}
      * @memberof ProductsApiGetProducts
      */
-    readonly ids?: string
+    readonly custom_fields?: Set<string>
 
     /**
      * The ID of the filter to use
@@ -1761,13 +1768,6 @@ export interface ProductsApiGetProductsRequest {
      * @memberof ProductsApiGetProducts
      */
     readonly updated_since?: string
-
-    /**
-     * Comma separated string array of custom fields keys to include. If you are only interested in a particular set of custom fields, please use this parameter for a smaller response.&lt;br/&gt;A maximum of 15 keys is allowed.
-     * @type {string}
-     * @memberof ProductsApiGetProducts
-     */
-    readonly custom_fields?: string
 }
 
 /**
@@ -2082,7 +2082,7 @@ export class ProductsApi extends BaseAPI {
      * @memberof ProductsApi
      */
     public getProducts(requestParameters: ProductsApiGetProductsRequest = {}, ) {
-        return ProductsApiFp(this.configuration).getProducts(requestParameters.owner_id, requestParameters.ids, requestParameters.filter_id, requestParameters.cursor, requestParameters.limit, requestParameters.sort_by, requestParameters.sort_direction, requestParameters.updated_since, requestParameters.custom_fields, ).then((request) => request(this.axios, this.basePath));
+        return ProductsApiFp(this.configuration).getProducts(requestParameters.owner_id, requestParameters.ids, requestParameters.custom_fields, requestParameters.filter_id, requestParameters.cursor, requestParameters.limit, requestParameters.sort_by, requestParameters.sort_direction, requestParameters.updated_since, ).then((request) => request(this.axios, this.basePath));
     }
 
     /**