Get the channel invitelist.
        Required arguments:
        * channel - Channel of which to get the invitelist for.

def invitelist(self, channel):
        """
        Get the channel invitelist.
        Required arguments:
        * channel - Channel of which to get the invitelist for.
        """
        with self.lock:
            self.is_in_channel(channel)

            self.send('MODE %s i' % channel)
            invites = []

            while self.readable():
                msg = self._recv(expected_replies=('346', '347'))

                if msg[0] == '346':
                    invitemask, who, timestamp = msg[2].split()[1:]
                    invites.append((self._from_(invitemask), who, \
                                    self._m_time.localtime(int(timestamp))))
                elif msg[0] == '347':
                    break

            return invites