Feature Request
Description
The current doc string for otio.algorithms.track_with_expanded_transitions() indicates the function returns a "pure" list of items (Clip's, Transition, etc.). This is not the case. The items involved in the transition are encapsulated in tuples.
We should perhaps update the doc string to clarify this.
Context
When using the otio.algorithms.track_with_expanded_transitions() I got surprised by the parts of a transition being encapsulated in tuples.