code: public function addInputOutput($process_id, $task_id, $input_output_create_item)
      {
          list($response) = $this->addInputOutputWithHttpInfo($process_id, $task_id, $input_output_create_item);
          return $response;
      }
docs: Operation addInputOutput
  
  
  
  @param string $process_id Process ID related to Input/Output object (required)
  @param string $task_id Task instance ID related to Input/Output object (required)
  @param \ProcessMaker\PMIO\Model\InputOutputCreateItem $input_output_create_item Create and add a new Input/Output object with JSON API (required)
  @return \ProcessMaker\PMIO\Model\InputOutputItem
  @throws \ProcessMaker\PMIO\ApiException on non-2xx response