我能够按照github上的示例使用交易API成功收费。执行收费如下所示:$result=$transaction_api->charge($access_token,$location_id,$request_body);echo"";print_r($result);echo"";这是输出:SquareConnect\Model\ChargeResponseObject([errors:protected]=>[transaction:protected]=>SquareConnect\Model\TransactionObject([id:protected]=>REMOVEDFR