Module v1 

Nested message and enum types in V1.

Modules

mutate

Nested message and enum types in Mutate.

Structs

Mutate

Add and/or remove subscriptions in place (applied atomically per frame). Topics use the kind-prefixed binary representation shared with the decentralized backend (XIP-49 §3.3.2): the first byte is the topic kind, the remainder is the identifier. This RPC initially serves TOPIC_KIND_GROUP_MESSAGES_V1 (0x00, identifier = group_id) and TOPIC_KIND_WELCOME_MESSAGES_V1 (0x01, identifier = installation_key); a topic whose kind the node does not serve fails the stream with INVALID_ARGUMENT. Future kinds (key packages, identity updates) are adopted via the capabilities advertised on Started.

Enums

Request

Each frame is exactly one of: a mutation, a Ping, or a Pong.