code: def _parse_style_files(style_files):
      """Parse the style_files command-line argument."""
      style_files = tf.gfile.Glob(style_files)
      if not style_files:
          raise ValueError(
              "No image files found in {}".format(style_files)
          )
      return style_files
  
file_path: magenta/magenta/models/image_stylization/image_stylization_create_dataset.py
imports: import io
  import os
  from magenta.models.image_stylization import image_utils
  from magenta.models.image_stylization import learning
  import skimage.io
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling a global function with example usage: _parse_style_files(style_files) and returns: style_files