import { EntityPath } from '@data-client/normalizr';
import Controller from '../controller/Controller.js';
export declare class GCPolicy implements GCInterface {
    protected endpointCount: Map<string, number>;
    protected entityCount: Map<string, Map<string, number>>;
    protected endpointsQ: Set<string>;
    protected entitiesQ: EntityPath[];
    protected intervalId: ReturnType<typeof setInterval>;
    protected controller: Controller;
    protected options: Required<Pick<GCOptions, Exclude<keyof GCOptions, 'expiresAt'>>>;
    constructor({ intervalMS, expiryMultiplier, expiresAt, }?: GCOptions);
    init(controller: Controller): void;
    cleanup(): void;
    createCountRef({ key, paths }: {
        key?: string;
        paths?: EntityPath[];
    }): () => () => void;
    protected expiresAt({ fetchedAt, expiresAt, }: {
        expiresAt: number;
        date: number;
        fetchedAt: number;
    }): number;
    protected runSweep(): void;
    /** Calls the callback when client is not 'busy' with high priority interaction tasks
     *
     * Override for platform-specific implementations
     */
    protected idleCallback(callback: (...args: any[]) => void, options?: IdleRequestOptions): void;
}
export declare class ImmortalGCPolicy implements GCInterface {
    init(): void;
    cleanup(): void;
    createCountRef(): () => () => undefined;
}
export interface GCOptions {
    intervalMS?: number;
    expiryMultiplier?: number;
    expiresAt?: (meta: {
        expiresAt: number;
        date: number;
        fetchedAt: number;
    }) => number;
}
export interface CreateCountRef {
    ({ key, paths }: {
        key?: string;
        paths?: EntityPath[];
    }): () => () => void;
}
export interface GCInterface {
    createCountRef: CreateCountRef;
    init(controller: Controller): void;
    cleanup(): void;
}
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