'Set additional, extended identity information to a node.
Replaces any existing extended information.
Arguments:
jid  -- The JID to modify.
node -- The node to modify.
data -- Either a form, or a list of forms to use
as extended information, replacing any
existing extensions.'

def set_extended_info(self, jid=None, node=None, **kwargs):

    self.api['set_extended_info'](jid, node, None, kwargs)
