Type Alias Handler<E>

Handler: HasKeys<ServiceSchemas<E>> extends true
    ? (
        arg: ActionContext<E>,
        services: Simplify<InferServices<ServiceSchemas<E>>>,
    ) => HandlerReturn<E> | Promise<HandlerReturn<E>>
    : (arg: ActionContext<E>) => HandlerReturn<E> | Promise<HandlerReturn<E>>