import { ExtendedVersion, VersionRange } from '../../../base/lib/exver';
import * as T from '../../../base/lib/types';
/**
 * Function signature for an uninit handler that runs during service shutdown/uninstall.
 */
export type UninitFn = (effects: T.Effects, 
/**
 * @description the target version to prepare for
 *
 * on update: the canMigrateFrom of the new package
 * on uninstall: null
 * on shutdown: the current version
 */
target: VersionRange | ExtendedVersion | null) => Promise<void | null | undefined>;
/** Object form of an uninit handler — implements an `uninit()` method. */
export interface UninitScript {
    uninit(effects: T.Effects, 
    /**
     * @description the target version to prepare for
     *
     * on update: the canMigrateFrom of the new package
     * on uninstall: null
     * on shutdown: the current version
     */
    target: VersionRange | ExtendedVersion | null): Promise<void>;
}
/** Either a {@link UninitScript} object or a {@link UninitFn} function. */
export type UninitScriptOrFn = UninitScript | UninitFn;
/**
 * Composes multiple uninit handlers into a single `ExpectedExports.uninit`-compatible function.
 * Handlers are executed sequentially in the order provided.
 *
 * @param uninits - One or more uninit handlers to compose
 */
export declare function setupUninit(...uninits: UninitScriptOrFn[]): T.ExpectedExports.uninit;
/** Normalizes a {@link UninitScriptOrFn} into a {@link UninitScript} object. */
export declare function setupOnUninit(onUninit: UninitScriptOrFn): UninitScript;