The fully-typed argument object passed to subscription handlers.
The shape is inferred from the SubscriptionBuilder chain — only the keys
actually configured (query, headers, params, principal, incoming) are present.
Always includes context (RequestContext) and signal (AbortSignal).
The fully-typed argument object passed to subscription handlers.
The shape is inferred from the
SubscriptionBuilderchain — only the keys actually configured (query, headers, params, principal, incoming) are present. Always includescontext(RequestContext) andsignal(AbortSignal).