<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def iter_init_append(self) :
        "creates a Message.AppendIter for appending arguments to the Message."
        iter = self.AppendIter(None)
        dbus.dbus_message_iter_init_append(self._dbobj, iter._dbobj)
        return \
            iter