import type { Entries } from 'type-fest';
export declare const keysOf: <T extends Record<string, any>>(arr: T) => (keyof T)[];
export declare const entriesOf: <T extends Record<string, any>>(arr: T) => Entries<T>;
export { hasOwn } from '@vue/shared';
/**
 * 获取链式值
 * @param o 目标对象
 * @param prop 属性
 * @param targetProp 目标属性
 */
export declare function getChainValue(o: any, prop: string, targetProp?: string): any;
export declare function getPropByPath(obj: any, path: string, strict: boolean): {
    o: any;
    k: string;
    v: any;
};
/**
 * 对象深度继承, 引用类型的值不进行合并
 * @param data1 对象1
 * @param data2 对象2
 * @param extendEmpty 是否继承空值, 默认false
 */
export declare const deepExtend: (data1: Record<string, any>, data2: Record<string, any>, extendEmpty?: boolean) => void;
export declare function deepCopy<O extends any>(val: O): O;