Cannot find 'SesameSession' in scope

[hongbo-miao]

I am trying to use mlx-audio 0.2.5 and build on iPhone 13 Pro Max with iOS 26.0.1.

Experiment 1

Here is a minimum reproducable code: https://github.com/hongbo-miao/hongbomiao.com/pull/34934/files

import Foundation
import Swift_TTS

func speakJokeText(jokeText: String) async throws {
  let trimmedJokeText = jokeText.trimmingCharacters(in: .whitespacesAndNewlines)
  guard !trimmedJokeText.isEmpty else {
    return
  }

  let sesameSession = try await SesameSession(voice: .conversationalA)
  _ = try await sesameSession.generate(for: trimmedJokeText)
}

failed to build and gives me error

Cannot find 'SesameSession' in scope

How can I use SesameSession correctly? Thanks! 😃

Experiment 2

Since SesameSession does not exist in experiment 1, I tried another way basically using the model directly. And this succeed building.

import Foundation
import Swift_TTS

func speakJokeText(jokeText: String) {
  let trimmedJokeText = jokeText.trimmingCharacters(in: .whitespacesAndNewlines)
  guard !trimmedJokeText.isEmpty else {
    return
  }

  let kokoroTTSModel = KokoroTTSModel()
  kokoroTTSModel.say(trimmedJokeText, .afSarah)
}

However when using, I got below error. I guess because of the model not auto download?