import type { OwnerScope } from './scope.js';
export interface TaskHandlers<T> {
    success?: (value: T) => void;
    error?: (error: unknown) => void;
    pending?: (pending: boolean) => void;
}
export type TaskOutcome<T> = {
    status: 'success';
    value: T;
} | {
    status: 'error';
    error: unknown;
} | {
    status: 'stale';
};
export type TaskWork<T> = (signal: AbortSignal) => T | PromiseLike<T>;
export interface LatestTask {
    cancel(): void;
    run<T>(work: TaskWork<T>, handlers?: TaskHandlers<T>): Promise<TaskOutcome<T>>;
}
/** One latest-only group. Create separate groups for independent operations. */
export declare const createLatestTask: (scope: Pick<OwnerScope, 'disposed' | 'own'>) => LatestTask;