public function postMultipart($url, $params = array(), $proxy = '') {
        $ch = $this->curlPostMultipart($url, $params, $proxy);
        $response = curl_exec($ch);
        return self::decode($ch, $response);
    }
public function postMultipart($url, $params = array(), $proxy = '') {
        $ch = $this->curlPostMultipart($url, $params, $proxy);
        $response = curl_exec($ch);
        return self::decode($ch, $response);
    }
public function postMultipart ( $ url , $ params = array ( ) , $ proxy = '' ) { $ ch = $ this -> curlPostMultipart ( $ url , $ params , $ proxy ) ; $ response = curl_exec ( $ ch ) ; return self :: decode ( $ ch , $ response ) ; }
Execute multipart POST request.

@param string $url     full or partial endpoint URL.
e.g. "statuses/update_with_media", "https://api.twitter.com/1.1/statuses/update_with_media.json"
@param mixed  $params  1-demensional array or query string.
@param string [$proxy] full proxy URL.
e.g. https://111.222.333.444:8080
@return mixed
@throws TwistException
Execute multipart POST request .