import { Step } from '../interface/step';
export declare function debounce(fn: Function, time?: number): Function;
export declare function readXPath(element: HTMLElement): string;
export declare function setAttrs(el: HTMLElement, attrs: object): void;
export declare function createdEL(attrs?: object, elName?: string): HTMLElement;
export declare function getDefaultStep(): Step;
export declare const isNullOrUndefined: (obj: any) => boolean;
export declare const isObj: (obj: any) => boolean;
export declare const isArray: (obj: any) => boolean;
export declare const deepClone: (obj: any, map?: WeakMap<any, any>) => any;
export declare const getNodeByXpath: (xpath: string) => Node;
export declare const getStepKey: (step: Step) => string;
export declare const generateStepKey: (url: string, xpath: string) => string;