def METHOD_NAME(self):
    """
    Perform the wait_any operation.  This method returns an
    ActionHandle with the results of waiting.  If None is returned
    then the ActionManager assumes that it can call this method
    again.  Note that an ActionHandle can be returned with a dummy
    value, to indicate an error.
    """
    raise ActionManagerError(
        "The _perform_wait_any method is not defined"
    )  # pragma:nocover