Do we want per-command methods?

[DougBurke]

The current approach is simple, and has the advantage to not being tied down to a particular DS9 version.

We could add methods that mimic the XPA/SAMP commands, and so could provide more knowledge on the supported values. The problem with that is what happens when new commands are added, or old ones deprecated / removed (e.g. hls and hsv support is new in ds9 8.6).

[DougBurke]

Of course, as soon as I start to try using this I start to see the benefit. Perhaps a subclass or some other way to provide an optional "nicely-typed" layer?

[DougBurke]

I will note that I've already started to do this with

• send_array/retrieve_array
• send_fits/retrieve_fits

but this is very specialized.