/**
  * @param $url
  * @return \Balanced\Customer
  */
 public function getCustomer($url)
 {
     return \Balanced\Customer::get($url);
 }
 function testGetBuyer()
 {
     $buyer1 = self::_createBuyer();
     $buyer2 = Customer::get($buyer1->href);
     $this->assertEquals($buyer1->id, $buyer2->id);
 }