src/HttpClient/HttpClient.php
public function authenticate($accountKey, $uniqueUserId, $method)
    {
        $this->addListener('request.before_send', array(
            new AuthListener($accountKey, $uniqueUserId, $method),
            'onRequestBeforeSend'
        ));
    }
public function authenticate($accountKey, $uniqueUserId, $method)
    {
        $this->addListener('request.before_send', array(
            new AuthListener($accountKey, $uniqueUserId, $method),
            'onRequestBeforeSend'
        ));
    }
{@inheritDoc}