Merged PR 136125: Fix return type of exportData method

Changed return type to `Promise<models.IExportDataResult>`

Author: anant-k-singh

Diff for: dist/powerbi-client.d.ts

@@ -655,9 +655,9 @@ declare module "visualDescriptor" {
          *  .then(data => { ... });
          * ```
          *
-         * @returns {(Promise<models.ExportDataType>)}
+         * @returns {(Promise<models.IExportDataResult>)}
          */
-        exportData(exportDataType?: models.ExportDataType, rows?: number): Promise<models.ExportDataType>;
+        exportData(exportDataType?: models.ExportDataType, rows?: number): Promise<models.IExportDataResult>;
         /**
          * Set slicer state.
          * Works only for visuals of type slicer.

Diff for: dist/powerbi.js

@@ -132,16 +132,16 @@ export class VisualDescriptor implements IVisualNode, IFilterable {
    *  .then(data => { ... });
    * ```
    *
-   * @returns {(Promise<models.ExportDataType>)}
+   * @returns {(Promise<models.IExportDataResult>)}
    */
-  async exportData(exportDataType?: models.ExportDataType, rows?: number): Promise<models.ExportDataType> {
-    let exportDataRequestBody: models.IExportDataRequest = {
+  async exportData(exportDataType?: models.ExportDataType, rows?: number): Promise<models.IExportDataResult> {
+    const exportDataRequestBody: models.IExportDataRequest = {
       rows: rows,
       exportDataType: exportDataType
     };
 
     try {
-      const response = await this.page.report.service.hpm.post<models.ExportDataType>(`/report/pages/${this.page.name}/visuals/${this.name}/exportData`, exportDataRequestBody, { uid: this.page.report.config.uniqueId }, this.page.report.iframe.contentWindow);
+      const response = await this.page.report.service.hpm.post<models.IExportDataResult>(`/report/pages/${this.page.name}/visuals/${this.name}/exportData`, exportDataRequestBody, { uid: this.page.report.config.uniqueId }, this.page.report.iframe.contentWindow);
       return response.body;
     } catch (response) {
       throw response.body;