waitEditedContentMessage
suspend fun BehaviourContext.waitEditedContentMessage(initRequest: Request<*>? = null, errorFactory: NullableRequestBuilder<*> = { null }): Flow<MessageContent>
inline suspend fun <O : MessageContent> BehaviourContext.waitEditedContentMessage(initRequest: Request<*>? = null, noinline errorFactory: NullableRequestBuilder<*> = { null }): Flow<CommonMessage<O>>