| p : str or sequence 
May be a string as passed verbatim to the service expecting a
range-list, or a sequence.  If a sequence, each item must be
either: 
a numeric valuea named value, such as, for example, ‘J’ for named
spectrum (if the numeric kwarg is False)a 2-tuple indicating a rangethe last item my be a string indicating the frame of
reference frames : sequence of str, optional 
A sequence of acceptable frame of reference keywords.  If not
provided, the default set in set_reference_frames will be
used. numeric : bool, optional 
 |