/**
* Constructor
*
* Method to instantiate an USPS shipping adapter object
*
* @param string $username
* @param string $password
* @param boolean $test
* @return \Pop\Shipping\Adapter\Usps
*/
public function __construct($username, $password, $test = false)
{
$this->testMode = (bool) $test;
$this->request = new Child('RateV4Request');
$this->request->setAttributes(array('USERID' => $username, 'PASSWORD' => $password));
}
