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