function isCustomEvent<TName>(chunk, name): chunk is WellKnownCustomEvent<TName>;Defined in: packages/ai/src/custom-events.ts:102
Type guard: is chunk a CUSTOM event with the given well-known name? Narrows the payload type when true, so consumers read chunk.value typed.
TName extends WellKnownCustomEventName
TName
chunk is WellKnownCustomEvent<TName>