'Send the author of and time at which a topic was set for the given
channel.
This sends a 333 reply message, which is not part of the IRC RFC.
@type user: C{str} or C{unicode}
@param user: The user receiving the topic.  Only their nickname, not
the full hostmask.
@type channel: C{str} or C{unicode}
@param channel: The channel for which this information is relevant.
@type author: C{str} or C{unicode}
@param author: The nickname (without hostmask) of the user who last set
the topic.
@type date: C{int}
@param date: A POSIX timestamp (number of seconds since the epoch) at
which the topic was last set.'

def topicAuthor(self, user, channel, author, date):

    self.sendLine((':%s    %d    %s    %s    %s    %d' % (self.hostname, 333, user, channel, author, date)))
