can't get the Jest provided ESM example to run - jestjs

Question

I'm just trying to get the ES6 Class Mocks example provided by Jest to run green.
here's my code repo
it's taken me way to long to even get to this point, but the tests still fail with
TypeError: SoundPlayer.mockClear is not a function
system under test
import SoundPlayer from './sound-player';
export default class SoundPlayerConsumer {
constructor() {
this.soundPlayer = new SoundPlayer();
}
playSomethingCool() {
const coolSoundFileName = 'song.mp3';
this.soundPlayer.playSoundFile(coolSoundFileName);
}
}
the test
import {jest} from '#jest/globals';
import SoundPlayer from './sound-player';
import SoundPlayerConsumer from './sound-player-consumer';
const mockPlaySoundFile = jest.fn();
jest.mock('./sound-player', () => {
return jest.fn().mockImplementation(() => {
return {playSoundFile: mockPlaySoundFile};
});
});
beforeEach(() => {
SoundPlayer.mockClear();
mockPlaySoundFile.mockClear();
});
it('The consumer should be able to call new() on SoundPlayer', () => {
const soundPlayerConsumer = new SoundPlayerConsumer();
// Ensure constructor created the object:
expect(soundPlayerConsumer).toBeTruthy();
});
it('We can check if the consumer called the class constructor', () => {
const soundPlayerConsumer = new SoundPlayerConsumer();
expect(SoundPlayer).toHaveBeenCalledTimes(1);
});
it('We can check if the consumer called a method on the class instance', () => {
const soundPlayerConsumer = new SoundPlayerConsumer();
const coolSoundFileName = 'song.mp3';
soundPlayerConsumer.playSomethingCool();
expect(mockPlaySoundFile.mock.calls[0][0]).toEqual(coolSoundFileName);
});
system under test dependency
export default class SoundPlayer {
constructor() {
this.foo = 'bar';
}
playSoundFile(fileName) {
console.log('Playing sound file ' + fileName);
}
}