Breaking changes in v0.4.0

[tensorturtle]

Thanks to @bytosaur we have a more complete FTMS implementation, which were released in v0.4.0.

v0.4.0 included some undocumented breaking changes to the API, the first of which I'm documenting here.

FitnessMachineService parse_fitness_machine_feature() has a different return type and content.

6ddc15c#diff-de14e22244a39d1e79b0332a8db8660f3ce2099c46e7a4df5ecf0e493a49012dR115

Previously parse_fitness_machine_feature() returned a FitnessMachineFeature,
but now it calls parse_all_features() to return a tuple (FitnessMachineFeature, TargetSettingFeatures).

Therefore, for legacy code to work, we need to index the 0th element of the returned Tuple.

6ddc15c#diff-f85a83dec91e3b44e1518d3eb54dcd71be147857cb5cb5c07136228ed4fe704aR132

This is fine, but the function type annotation should be fixed.
Currently it's async def get_fitness_machine_feature(self) -> FitnessMachineFeature:
It should be: async def get_fitness_machine_feature(self) -> Tuple(FitnessMachineFeature, TargetSettingFeatures):

I can do that myself.