'Rename a file or folder at *old_path* to *new_path* shared at *service_name*. Note that this method cannot be used to rename file/folder across different shared folders
*old_path* and *new_path* are string/unicode referring to the old and new path of the renamed resources (relative to) the shared folder.
If the path contains non-English characters, an unicode string must be used to pass in the path.
:param string/unicode service_name: Contains the name of the shared folder.
:param integer/float timeout: Number of seconds that pysmb will wait before raising *SMBTimeout* via the returned *Deferred* instance\'s *errback* method.
:return: A *twisted.internet.defer.Deferred* instance. The callback function will be called with a 2-element tuple of ( *old_path*, *new_path* ).'

def rename(self, service_name, old_path, new_path):

    if (not self.instance):
        raise NotConnectedError('Not    connected    to    server')
    d = defer.Deferred()
    self.instance._rename(service_name, old_path, new_path, d.callback, d.errback)
    return d
