'Send a reply <iq> stanza.
Overrides StanzaBase.reply
Sets the \'type\' to \'result\' in addition to the default
StanzaBase.reply behavior.
Arguments:
clear -- Indicates if existing content should be
removed before replying. Defaults to True.'

def reply(self, clear=True):

    self['type'] = 'result'
    StanzaBase.reply(self, clear)
    return self
