openai/whisper · How to Generate a .mlmodel File for Apple's CoreML Framework ?

I am exploring the possibilities of using advanced machine learning models, like OpenAI's Whisper large model, in iOS and macOS applications. However, I'm facing a challenge as there are no readily available .mlmodel files that suit my needs. Could anyone guide me on how to generate a .mlmodel file from scratch or convert existing models to be compatible with Apple's CoreML framework? Specifically, I'm interested in steps, tools, or libraries necessary for this conversion process. I am looking for advice from those who have experience in this area or know relevant resources. Thank you!