code: public ApiSuccessResponse completeTransfer(String id, CompleteTransferData completeTransferData) throws ApiException {
          ApiResponse<ApiSuccessResponse> resp = completeTransferWithHttpInfo(id, completeTransferData);
          return resp.getData();
      }
docs: Complete a transfer
  Complete a previously initiated two-step transfer using the provided IDs.
  @param id The connection ID of the consult call (established). (required)
  @param completeTransferData  (required)
  @return ApiSuccessResponse
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body