export declare function isObject(val: unknown): val is object & Record<string | symbol | number, unknown>;
export declare function isntObject<T>(val: T): val is Exclude<T, object & Record<string | symbol | number, unknown>>;
export declare function isPlainObject(val: unknown): val is object & Record<string | symbol | number, unknown>;
export declare function isntPlainObject<T>(val: T): val is Exclude<T, object & Record<string | symbol | number, unknown>>;
export declare function isEmptyObject(val: object): boolean;
export declare function isntEmptyObject(val: object): boolean;