/**
* Method send()
*
* Send the request to the server
*
* @param object $client The server's connection
* @return MoipResponse
* @access public
*/
public function send($client = null)
{
$this->validate();
if ($client == null) {
$client = new MoipClient();
}
$url = $this->environment->base_url . '/ws/alpha/EnviarInstrucao/Unica';
return $this->answer = $client->curlPost($this->credential['token'] . ':' . $this->credential['key'], $this->getXML(), $url, $this->errors);
}
