code: public ApiSuccessResponse mgtCancel(MgtCancel mgtCancel) throws ApiException {
          ApiResponse<ApiSuccessResponse> resp = mgtCancelWithHttpInfo(mgtCancel);
          return resp.getData();
      }
docs: Cancel a bulk of outbound interactions
  Cancel a bulk of outbound interactions
  @param mgtCancel  (required)
  @return ApiSuccessResponse
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body