 option is used).

    In addition to the data object, the following options can be given
    as keyword arguments:

        methodname: the method name for a methodCall packet

        methodresponse: true to create a methodResponse packet.
        If this option is used with a tuple, the tuple must be
        a singleton (i.e. it can contain only one element).

        encoding: the packet encoding (default is UTF-8)

    All byte strings in the data structure are assumed to use the
    packet encoding.  Unicode strings are automatically converted,
    where necessary.
    z(argument must be tuple or Fault instancer5