Function trackedSetFrom

trackedSetFrom(
    sidecar: TrackingSidecar | undefined,
    pinnedTo: string,
    trackingKey: string,
): TrackedSet
Read one node's set from a sidecar; refuses a sidecar pinned to another model state.
Parameters
- sidecar: TrackingSidecar | undefined
- pinnedTo: string
- trackingKey: string
Returns TrackedSet