Interface ExportedHandler<Env, QueueMessage>

interface ExportedHandler<Env = unknown, QueueMessage = unknown> {
    fetch?: (
        request: Request,
        env: Env,
        ctx: ExecutionContext,
    ) => Response | Promise<Response>;
    queue?: (
        batch: MessageBatch<QueueMessage>,
        env: Env,
        ctx: ExecutionContext,
    ) => void | Promise<void>;
    scheduled?: (
        controller: ScheduledController,
        env: Env,
        ctx: ExecutionContext,
    ) => void | Promise<void>;
}