const Fruits = unionize({
  strawberry: ofType<{ obj1: string }>(),
  banana: ofType<{ obj2: string }>(),
});

const Vegetables = unionize({
  lettuce: ofType<{}>(),
});

const Produce = unionize({
  fruit: Fruits._Union,
  vegetable: Vegetables._Union,
});

type ProduceUnion = typeof Produce._Union;
// type ProduceUnion = ({
//   tag: "fruit";
// } & {
//   tag: "strawberry";
// } & {
//   obj1: string;
// }) | ({
//   tag: "fruit";
// } & {
//   tag: "banana";
// } & {
//   obj2: string;
// }) | ({
//   tag: "vegetable";
// } & {
//   tag: "lettuce";
// })

const getProduce = (): ProduceUnion => {
  const strawberry1 = Fruits.strawberry({ obj1: 'i' });
  const strawberry = Produce.fruit(strawberry1);
  return strawberry;
};

const produce = getProduce();
console.info(produce); // { obj: 'i', tag: 'fruit' }