protected function setPsrResponse( \Psr\Http\Message\ResponseInterface $response )
	{
		$this->response->setStatus( $response->getStatusCode() );

		foreach( $response->getHeaders() as $key => $value ) {
			foreach( (array) $value as $val ) {
				$this->response->setHeader( $key, $val );
			}
		}

		return (string) $response->getBody();
	}