API: SummarySegment documentation

[sascha]

The documentation for SummarySeĝment states that activity_type can be either Run or Ride. But the actual return value can also be other activity types, so it probably would have to be an instance of ActivityType.

[Elliott · Accepted solution]

Hey @sascha, 

Thanks for the feedback! We appreciate your input and have made note of it internally - good callout.