Function getCheckpoint

src/checkpoints/index.ts:206–207

(checkpointId: Id)

    const hasCheckpoint = (checkpointId: Id) => collHas(deltas, checkpointId);

    const getCheckpoint = (checkpointId: Id): string | undefined =>
      mapGet(labels, checkpointId);

    const goBackward = (): Checkpoints => {
      goBackwardImpl();