import type { SessionStore } from './store.js';
/**
 * Idle-close watchdog handle. `touch` resets the per-channel timer,
 * `removeChannel` cancels it, and `shutdown` cancels everything.
 */
export interface Lifecycle {
    /** Cancel the idle timer for `channelId`. */
    removeChannel(channelId: string): void;
    /** Cancel every outstanding timer. */
    shutdown(): void;
    /** Reset the idle timer for `channelId`. No-op if `closeDelayMs` is 0. */
    touch(channelId: string): void;
}
/**
 * Create a lifecycle watchdog. `closeDelayMs <= 0` disables the timer
 * entirely (all operations become no-ops) — the right default for tests
 * and for callers that drive close explicitly.
 *
 * `closeOnIdle` is invoked with the channel id when a timer fires. The
 * lifecycle itself does not call `store` — `store` is passed for parity
 * with the Rust signature and for future extension (e.g. skip closing a
 * channel already sealed).
 */
export declare function createLifecycle(store: SessionStore, closeOnIdle: (channelId: string) => Promise<void> | void, closeDelayMs: number): Lifecycle;
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