def ping(self, destination=None, timeout=1.0, **kwargs):
    "Ping all (or specific) workers.\n\n        Returns:\n            List[Dict]: List of ``{'hostname': reply}`` dictionaries.\n\n        See Also:\n            :meth:`broadcast` for supported keyword arguments.\n        "
    return self.broadcast('ping', reply=True, arguments={}, destination=destination, timeout=timeout, **kwargs)
Ping all (or specific) workers.

Returns:
    List[Dict]: List of ``{'hostname': reply}`` dictionaries.

See Also:
    :meth:`broadcast` for supported keyword arguments.
def ping(self, destination=None, timeout=1.0, **kwargs):
    "Ping all (or specific) workers.\n\n        Returns:\n            List[Dict]: List of ``{'hostname': reply}`` dictionaries.\n\n        See Also:\n            :meth:`broadcast` for supported keyword arguments.\n        "
    return self.broadcast('ping', reply=True, arguments={}, destination=destination, timeout=timeout, **kwargs)