ost( $url, array(
            'method'      => 'POST',
            'timeout'     => 30,
            'redirection' => 5,
            'httpversion' => '1.0',
            'blocking'    => $blocking,
            'headers'     => $headers,
            'body'        => array_merge( $params, array( 'client' => $this->version ) ),
            'cookies'     => array()
        ) );

        return $response;
    }

}