code: public function getAction($name)
      {
          if (array_key_exists($name, $this->actions)) {
              return $this->actions[$name];
          }
  
          throw new KeyNotFoundInSetException($name, array_keys($this->actions), 'actions');
      }
docs: @param string $name Action name
  
  @throws KeyNotFoundInSetException If action does not exist
  
  @return AbstractAction