'Execute the most specific node handler for the given
JID/node combination.
Arguments:
htype -- The handler type to execute.
jid   -- The JID requested.
node  -- The node requested.
data  -- Optional, custom data to pass to the handler.'

def _run_node_handler(self, htype, jid, node=None, ifrom=None, data=None):

    if (not data):
        data = {}
    return self.api[htype](jid, node, ifrom, data)
