import Policy from "../../chip-types/policy.js";
import * as Query from "../../datastore/query.js";
import type { CollectionItem, Context } from "../../main.js";
export default class Not extends Policy {
    static type_name: string;
    strategy_to_negate: Policy;
    constructor(strategy: Policy);
    _getRestrictingQuery(context: Context): Promise<Query.Not>;
    isItemSensitive(context: Context): Promise<boolean>;
    checkerFunction(context: Context, item_getter: () => Promise<CollectionItem>): Promise<{
        allowed: boolean;
        reason: string;
    } | null>;
}