src/Guzzle/Service/Description/Parameter.php
public function setItems(Parameter $items = null)
    {
        if ($this->items = $items) {
            $this->items->setParent($this);
        }

        return $this;
    }
public function setItems(Parameter $items = null)
    {
        if ($this->items = $items) {
            $this->items->setParent($this);
        }

        return $this;
    }
public function setItems ( Parameter $ items = null ) { if ( $ this -> items = $ items ) { $ this -> items -> setParent ( $ this ) ; } return $ this ; }
Set the items data of the parameter

@param Parameter|null $items Items to set

@return self
Set the items data of the parameter