export declare const isArguments: (obj: unknown) => boolean;
export declare const isFunction: (obj: unknown) => boolean;
export declare const isString: (obj: unknown) => boolean;
export declare const isNumber: (obj: unknown) => boolean;
export declare const isDate: (obj: unknown) => boolean;
export declare const isRegExp: (obj: unknown) => boolean;
export declare const isError: (obj: unknown) => boolean;
export declare const isSymbol: (obj: unknown) => boolean;
export declare const isMap: (obj: unknown) => boolean;
export declare const isWeakMap: (obj: unknown) => boolean;
export declare const isSet: (obj: unknown) => boolean;
export declare const isWeakSet: (obj: unknown) => boolean;
export declare const isObject: (obj: unknown) => boolean;
export declare const isPromise: (obj: unknown) => boolean;