import Appendable from "../display/core/Appendable";
export declare const loopSystem: {
    add: ((item: Appendable, initData?: void | Record<string, any> | undefined) => false | import("@lincode/promiselikes").Cancellable) | ((item: Appendable, initData?: void | Record<string, any> | undefined) => boolean);
    delete: ((item: Appendable) => false | import("@lincode/promiselikes").Cancellable | undefined) | ((item: Appendable) => boolean);
};