code: def reply(self, incoming, user, message, prefix=None):
          
          if not isinstance(user, User):
              user = User(user)
  
          if isinstance(incoming, User):
              if prefix:
                  self.msg(user, "%s: %s" % (user.nick, message))
              else:
                  self.msg(user, message)
          else:
              if prefix is not False:
                  self.msg(incoming, "%s: %s" % (user.nick, message))
              else:
                  self.msg(incoming, message)
docs: Replies to a user in a given channel or PM.
  
          If the specified incoming is a user, simply sends a PM to user.
          If the specified incoming is a channel, prefixes the message with the
          user's nick and sends it to the channel.
  
          This is specifically useful in creating responses to commands that can
          be used in either a channel or in a PM, and responding to the person
          who invoked the command.