export declare function isObject(value: any): boolean;
export declare function isDomain(value: any): boolean;
export declare function isPlainObject(value: any): boolean;
export declare function includes<T>(array: T[], item: T): boolean;
export declare function isPrimitive(value: any): boolean;
export declare function convert2UniqueString(key: string | symbol | number): string;
export declare const deduplicate: (array: any[]) => any[];
/**
 * nextTick would flush promise micro task
 */
export declare function nextTick(fn?: () => void): Promise<void>;
export declare const hasOwn: (val: object, key: string | number | symbol) => key is never;
export declare function is(x: any, y: any): boolean;
export declare function bind(fn: any, ctx: any): (a?: any) => any;
export declare function shallowEqual(objA: any, objB: any): boolean;