@buka/class-transformer-extra/dist/umd/src/string/to-string.d.ts

class-transformer-extra contains methods that's aren't included in the class-transform package.

import { TransformOptions } from 'class-transformer';
interface ToStringTransformOptions extends TransformOptions {
    optional?: boolean;
}
export declare function ToString(options?: ToStringTransformOptions): PropertyDecorator;
export {};