Obtain valid values and keys for enum

[fabioMarocchi]

Assuming I have the following .proto file

message Foo {
  Bar bar = 1;
}
enum Bar {
  a = 0;
  b = 1;
}

Is there a way to obtain all the valid enum values/keys?

I know that I can switch between atom and integer with Bar.value(:a) and Bar.key(0), but I couldn't find a way to obtain something like Bar.keys() to obtain [:a, :b], Bar.values() to obtain [0, 1] or Bar.map() to obtain %{a: 0, b: 1}

My apologies if there's already a function implemented and I didn't find it. If there isn't, I think it could be helpful.

[fabioMarocchi]

This functionality was added in 8c86518 so I'm marking this issue as closed.