get
External read — always returns a flow. If the key has no entry (or has expired), an empty flow (holding null) is created so subscribers can attach and be notified when a future set populates it. Also ensures a mutex exists for this key.
External read — always returns a flow. If the key has no entry (or has expired), an empty flow (holding null) is created so subscribers can attach and be notified when a future set populates it. Also ensures a mutex exists for this key.