code: public PowerFormSendersResponse listPowerFormSenders(String accountId, PowerFormsApi.ListPowerFormSendersOptions options) throws ApiException {
      Object localVarPostBody = "{}";
      
        // verify the required parameter 'accountId' is set
        if (accountId == null) {
        throw new ApiException(400, "Missing the required parameter 'accountId' when calling listPowerFormSenders");
        }
      
      // create path and map variables
      String localVarPath = "/v2/accounts/{accountId}/powerforms/senders".replaceAll("\\{format\\}","json")
        .replaceAll("\\{" + "accountId" + "\\}", apiClient.escapeString(accountId.toString()));
  
      // query params
      java.util.List<Pair> localVarQueryParams = new java.util.ArrayList<Pair>();
      java.util.Map<String, String> localVarHeaderParams = new java.util.HashMap<String, String>();
      java.util.Map<String, Object> localVarFormParams = new java.util.HashMap<String, Object>();
  
      if (options != null) {
         localVarQueryParams.addAll(apiClient.parameterToPairs("", "start_position", options.startPosition));
      }
      
      
        final String[] localVarAccepts = {
      "application/json"
        };
        final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
  
        final String[] localVarContentTypes = {
      
        };
        final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
  
        String[] localVarAuthNames = new String[] { "docusignAccessCode" }; //{  };
  
          GenericType<PowerFormSendersResponse> localVarReturnType = new GenericType<PowerFormSendersResponse>() {};
          return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
            }
docs: Returns the list of PowerForms available to the user.
  
  @param accountId The external account number (int) or account ID Guid. (required)
  @param options for modifying the method behavior.
  @return PowerFormSendersResponse
  @throws ApiException if fails to make API call