StepSnapshotSubscribe typedef

StepSnapshotSubscribe = void Function() Function(void listener(TrajectoryStepSnapshot snapshot))

Subscribes to the P2 mirror's published snapshots and returns the remover (house convention) — the step axis's own re-join seam, spelled as a plain function type for the same reason HeadSnapshotSubscribe is (the mirror is explicitly not notifier state).

Implementation

typedef StepSnapshotSubscribe =
    void Function() Function(
      void Function(TrajectoryStepSnapshot snapshot) listener,
    );