async function* AsyncGeneratorFunctionInstance() {}
const AsyncGeneratorFunction = Object.getPrototypeOf(
  AsyncGeneratorFunctionInstance,
).constructor
const AsyncGenerator = AsyncGeneratorFunction.prototype;

const asyncIterable = {
  async *[Symbol.asyncIterator]() {},
};
var results = [
  typeof asyncIterable[Symbol.asyncIterator].prototype.__proto__ === 'object', // it's an object even in Hermes, but looks a different shape
  typeof AsyncGenerator.prototype, // undefined on hermes
  asyncIterable[Symbol.asyncIterator].prototype.__proto__ === AsyncGenerator.prototype, // true in other engines
  asyncIterable[Symbol.asyncIterator].prototype.__proto__.__proto__ // null in Hermes, object with an iterator fn in other engines
];

// Node 18.18.2
// console.log(Object.getOwnPropertyDescriptors(asyncIterable[Symbol.asyncIterator].prototype.__proto__.__proto__))
// {
//   [Symbol(Symbol.asyncIterator)]: {
//     value: [Function: [Symbol.asyncIterator]],
//     writable: true,
//     enumerable: false,
//     configurable: true
//   }
// }

throw JSON.stringify(results);