memory
fun memory(partitions: Int, snapshots: (context: String) -> SnapshotStore = { InMemorySnapshotStore() }): HostBackends
In memory, each context its own log, snapshots and timers: for one node, whose data does not outlive it. snapshots opens each context's snapshot store, an InMemorySnapshotStore unless a test wraps it (to query the snapshots on the memory backend, say).