import { Disposable } from "../common/interfaces/disposable";
import { DBLiveCallback } from "../types/dblive.callback";
export declare class DBLiveKeyEventListener<T> implements Disposable {
    readonly action: string;
    readonly handler: DBLiveCallback<DBLiveKeyEventHandlerArgs<T>>;
    private _listening;
    private listeningChangedHandlers;
    constructor(action: string, handler: DBLiveCallback<DBLiveKeyEventHandlerArgs<T>>);
    get listening(): boolean;
    set listening(listening: boolean);
    dispose(): void;
    onListeningChanged(handler: ListeningChangedHandler): this;
}
declare type ListeningChangedHandler = (listening: boolean) => unknown;
export declare type DBLiveKeyEventHandlerArgs<T> = {
    customArgs?: Record<string, string | number>;
    oldValue: T | undefined;
    value: T | undefined;
};
export {};