ReadonlydurabilityReadonlyeventsEach turn's call tree log, kept while it runs (streaming.md, The rules a store keeps).
ReadonlypersistentWhether it keeps records beyond this process (unknown: yes).
The conversations it holds.
Resolves when a record after after exists (or ms passed).
Conversations kept in this process's memory (lost when it ends): the store a conversation uses when none is named. One per process by default, so opening the same id again opens the same conversation.