'Handle a completed keychain.'

def execute(self, cmdstr, keytype, count=None):

    if (not isinstance(keytype, self.Type)):
        raise TypeError('Type    {}    is    no    Type    member!'.format(keytype))
    if (keytype == self.Type.chain):
        hintmanager = objreg.get('hintmanager', scope='tab', window=self._win_id, tab='current')
        hintmanager.handle_partial_key(cmdstr)
    else:
        super().execute(cmdstr, keytype, count)
