declare type ValuesOf<O extends object> = O[keyof O];
export declare const hasProp: <O extends object, K extends PropertyKey>(obj: O, propKey: K) => obj is O & { [key in K]: unknown; };
export declare const hasOwnProp: <O extends object, K extends PropertyKey>(obj: O, propKey: K) => obj is O & { [key in K]: unknown; };
export declare const isObject: (obj: unknown) => obj is object;
export declare const isPlainObject: (obj: object) => boolean;
export declare const mapValues: <O extends object, Result>(obj: O, fn: (value: ValuesOf<O>, key: keyof O) => Result) => { [key in keyof O]: Result; };
export {};
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