import { TaskGroup } from "./task_group";
/**
 * Launches an event loop that processes events from an async iterable.
 * It handles each event using the provided handler function and yields control
 * to allow other macro tasks to run periodically.
 *
 * @param signal - An AbortSignal to allow cancellation of the loop.
 * @param taskGroup - A TaskGroup to manage the lifecycle of the loop.
 * @param eventStream - An async iterable of events to process.
 * @param handleEvent - A function that processes each event.
 * @param loopIntervalMs - Interval in milliseconds used for two purposes:
 *   (1) to periodically yield control to the JS event loop for fairness,
 *   (2) if `strictInterval` is enabled, to enforce a per-event processing timeout.
 *   Defaults to 8ms (roughly 60fps frame budget).
 * @param strictInterval - If true, each event handler must complete within
 *   `loopIntervalMs`, otherwise it is aborted. If false, handlers may take longer
 *   but yielding still happens at the interval. Defaults to false.
 */
export declare function launchEventLoop<T>(signal: AbortSignal, taskGroup: TaskGroup, eventStream: AsyncIterable<T>, handleEvent: (signal: AbortSignal, event: T) => Promise<void>, loopIntervalMs?: number, strictInterval?: boolean): Promise<void>;