

func (Callable) -- a callable function, such as Python
        callables, builtin operators (e.g. "add()") and annotated
        TorchScript functions.


args (tuple) -- the argument tuple for the "func"
    invocation.


kwargs (dict) -- is a dictionary of keyword arguments
    for the "func" invocation.


timeout (float, optional) -- timeout in seconds for
    this remote call. If the creation of this "RRef" on worker
    "to" is not successfully processed on this worker within this
    timeout, then the next time there is an attempt to use the
    RRef (such as "to_here()"), a timeout will be raised
    indicating this failure. A value of 0 indicates an infinite
    timeout, i.e. a timeout error will never be raised. If not
    provided, the default value set during initialization or with
    "_set_rpc_timeout" is used.




Returns:
      A user "RRef" instance to the result value. Use the blocking API