import { NumericDictionary, PropertyPath } from '@ngx-simple/core/types';
/**
 * 判断对象属性存在
 * @param object 任意{}对象
 * @param path 属性值 'string' | 'string.string' | ['string', 'string']
 * @returns 如果集合没有可枚举属性，或任何类型不被视为集合，则返回true。
 */
export declare function has<T extends object>(object: T, path: PropertyPath): boolean;
/**
 * 根据key深度获取对象对应值
 * @param object 对象 [] | {}
 * @param path 属性值或者属性集合 'number' | 'string' | 'string.string' | ['string', 'string']
 * @param fallback 回退值
 * @returns 返回实际值，如果取不到返回null
 */
export declare function get<T extends object, K extends keyof T>(object: T, path: K | K[]): T[K];
export declare function get<T extends object, K extends keyof T>(object: T, path: K | K[]): T[K] | undefined;
export declare function get<T extends object, D>(object: T | null | undefined, path: PropertyPath, fallback: D): T | D;
export declare function get<T>(object: NumericDictionary<T>, path: number): T;
export declare function get<T>(object: NumericDictionary<T>, path: number): T | undefined;
export declare function get<T, D>(object: NumericDictionary<T>, path: number, fallback: D): T | D;
export declare function get<D>(object: null | undefined, path: PropertyPath, fallback: D): D;
export declare function get<T extends object>(object: T | null | undefined, path: PropertyPath): undefined;
export declare function get<T extends object, K extends keyof T, D>(object: T, path: K | K[], fallback: D): T[K] | D;
/**
 * 根据属性集合排除对象值
 * @param obj 对象
 * @param arr 属性值或者属性集合
 * @returns 返回排除属性值以外的对象属性和值
 */
export declare function omit<T extends object, K extends keyof T>(object: T, path: K | K[]): Omit<T, K>;
/**
 * 根据属性集合获取对象值
 * @param object 对象
 * @param arr 属性值或者属性集合
 * @returns 返回给定属性值以内的对象属性和值
 */
export declare function pick<T extends object, K extends keyof T>(object: T, prop: K | K[]): Pick<T, K>;