``` @param \Paymill\Models\Response\Payment $payment ``` https://github.com/paymill/paymill-php/blob/v4.4.1/lib/Paymill/Models/Response/Client.php#L90 It is wrong, because the method can accept an array (a [list of payments](https://developers.paymill.com/API/index#-client-object)) as a $payment argument value. Related to https://github.com/paymill/paymill-php/issues/139
https://github.com/paymill/paymill-php/blob/v4.4.1/lib/Paymill/Models/Response/Client.php#L90
It is wrong, because the method can accept an array (a list of payments) as a $payment argument value.
Related to #139