Speed up model downloads with multiprocessing

[mattaltberg]

A super simple python script I've been using to download the Whisper files to the default cache directory in my docker image. Works like a charm.

#!/usr/bin/env python3

from multiprocessing import Pool
import whisper

def download_models(model: str):
    whisper.load_model(model)
    return f'{model} downloaded.'

def main():
    models = ['large-v2', 'large', 'base.en', 'small.en', 'medium.en']
    with Pool() as p:
        print(p.map(download_models, models))

if __name__ == '__main__':
    main()