TypeScript Utility Library

The AI would generate utility types like:

type DeepPartial<T> = {
  [P in keyof T]?: T[P] extends object 
    ? DeepPartial<T[P]> : T[P];
};

type Branded<T, B> = T & { __brand: B };
type USD = Branded<number, 'USD'>;

type Result<T, E = Error> = 
  | { ok: true; value: T }
  | { ok: false; error: E };

type Path<T> = T extends object 
  ? { [K in keyof T]: 
      `${K & string}.${Path<T[K]>}` }[keyof T]
  : never;

Plus: Curry, Compose, Pipe, Maybe, Either,
  async utilities, validation types with JSDoc