We now have spherical.Modes, scri.ModesTimeSeries, scri.AsymptoticBondiData, sxs.TimeSeries, and sxs.WaveformModes objects — with sporadic relationships between them. I'm thinking that scri.ModesTimeSeries should be moved to sxs, and inherit from both spherical.Modes and sxs.TimeSeries. Then, sxs.WaveformModes can inherit from the new sxs.ModesTimeSeries and WaveformMixin, while sxs.WaveformGrid can inherit from sxs.TimeSeries and WaveformMixin.
We now have
spherical.Modes,scri.ModesTimeSeries,scri.AsymptoticBondiData,sxs.TimeSeries, andsxs.WaveformModesobjects — with sporadic relationships between them. I'm thinking thatscri.ModesTimeSeriesshould be moved tosxs, and inherit from bothspherical.Modesandsxs.TimeSeries. Then,sxs.WaveformModescan inherit from the newsxs.ModesTimeSeriesandWaveformMixin, whilesxs.WaveformGridcan inherit fromsxs.TimeSeriesandWaveformMixin.