setPlaytimeAfterInitialAndTargetStateEstablished
@RestrictTo(value = [RestrictTo.Scope.LIBRARY_GROUP_PREFIX] )
This allows tools to set the transition (between initial and target state) to a specific playTimeNanos.
Note: This function is intended for tooling use only.
Caveat: Once initialState or targetState changes, it needs to take a whole composition pass for all the animations and child transitions to recompose with the new initialState and targetState. Subsequently all the animations will be updated to the given play time.
Caveat: This function puts Transition in a manual playtime setting mode. From then on the Transition will not resume normal animation runs.