Module usage 

Structs

ChannelUsageEmitter

HttpUsageEmitter

InvalidUsageBuildId

UsageIdentity

Billing and policy identity copied from one verified session token. The legacy fields remain present during the compatibility window; V2 fields are emitted only as a complete signed tuple.

WebSocketUsageBatch

WebSocketUsageEnvelope

Enums

WebSocketUsageEvent

Traits

WebSocketUsageEmitter