py:class spectral_cube.spectral_cube.BaseSpectralCube
py:obj radio_beam.Beam
py:obj astroquery.splatalogue.Splatalogue
py:class spectral_cube.base_class.BaseNDClass
py:class spectral_cube.base_class.SpectralAxisMixinClass

# yt references
py:obj yt.surface.export_sketchfab
py:obj yt.show_colormaps

