import { NgFlowchart } from '../model/flow.model';
export declare class OptionsService {
    private _options;
    private _callbacks;
    constructor();
    setOptions(options: any): void;
    setCallbacks(callbacks: any): void;
    get options(): NgFlowchart.Options;
    get callbacks(): NgFlowchart.Callbacks;
    private sanitizeOptions;
}