import type util from "node:util"; export declare const isRegExp: typeof util.isRegExp; export declare const isDate: typeof util.isDate; export declare const isArray: typeof util.isArray; export declare const isBoolean: typeof util.isBoolean; export declare const isNull: typeof util.isNull; export declare const isNullOrUndefined: typeof util.isNullOrUndefined; export declare const isNumber: typeof util.isNumber; export declare const isString: typeof util.isString; export declare const isSymbol: typeof util.isSymbol; export declare const isUndefined: typeof util.isUndefined; export declare const isFunction: typeof util.isFunction; export declare const isBuffer: typeof util.isBuffer; export declare const isDeepStrictEqual: typeof util.isDeepStrictEqual; export declare const isObject: typeof util.isObject; export declare const isError: typeof util.isError; export declare const isPrimitive: typeof util.isPrimitive;