code: def get_models():
      
      all_models = gfile.Glob(os.path.join(models_dir(), '*.meta'))
      model_filenames = [os.path.basename(m) for m in all_models]
      model_numbers_names = sorted([
          (shipname.detect_model_num(m), shipname.detect_model_name(m))
          for m in model_filenames])
      return model_numbers_names
docs: Finds all models, returning a list of model number and names
      sorted increasing.
  
      Returns: [(13, 000013-modelname), (17, 000017-modelname), ...etc]