code: public function updateUser($id, $user_update_item)
      {
          list($response) = $this->updateUserWithHttpInfo($id, $user_update_item);
          return $response;
      }
docs: Operation updateUser
  
  
  
  @param string $id ID of user to retrieve (required)
  @param \ProcessMaker\PMIO\Model\UserUpdateItem $user_update_item User object for update (required)
  @return \ProcessMaker\PMIO\Model\UserItem
  @throws \ProcessMaker\PMIO\ApiException on non-2xx response