OptionalidentityOptionalkeyBuilds the partition key for collapse/coalescing behavior.
Defaults to storageTaskId + ":" + serialized input, so different
payloads stay isolated unless you intentionally provide a broader grouping
key.
OptionalmaxMaximum number of distinct live keys tracked for this middleware config.
Debounce/throttle window in milliseconds.
Controls identity partitioning for middleware-managed state.
Omit this option to keep the shared cross-identity keyspace.