def rpc(address, func_name, *args):
    """Performs an RPC function call with the given arguments.

    * http://uwsgi.readthedocs.io/en/latest/RPC.html

    .. warning:: Bytes are returned for Python 3.

    :param str|unicode address:

    :param str|unicode func_name: Function name to call.

    :param list[str|bytes] args:

    :rtype: bytes|str

    :raises ValueError: If unable to call RPC function.
    """
