declare const isType: {
    string: (v: unknown) => v is string;
    regex: (v: unknown) => v is RegExp;
    symbol: (v: unknown) => v is Symbol;
    function: (v: unknown) => v is Function;
    bigint: (v: unknown) => v is BigInt;
    number: (v: unknown) => v is number;
    nan: (v: unknown) => v is number;
    null: (v: unknown) => v is null;
    undefined: (v: unknown) => v is undefined;
    boolean: (v: unknown) => v is boolean;
    array: (v: unknown) => v is unknown[];
    date: (v: unknown) => v is Date;
    set: (value: unknown) => value is Set<unknown>;
    object: (value: unknown) => value is object;
    map: (value: unknown) => value is Map<unknown, unknown>;
};

export { isType };