Returns the $O(1)$ session-scoped pub/sub topic name for a given sessionId. Wildcard ('*') or empty session IDs fall back to the broadcast PUSH_STATUS_UPDATES_TOPIC.
sessionId
'*'
Returns the $O(1)$ session-scoped pub/sub topic name for a given
sessionId. Wildcard ('*') or empty session IDs fall back to the broadcast PUSH_STATUS_UPDATES_TOPIC.