code: def width(self):
      return self.train.image_shape[1]
  
file_path: objax/examples/fixmatch/libml/data/fsl.py
imports: import itertools
  import os
  from typing import List, Callable, Dict
  import numpy
  from absl import flags
  from examples.fixmatch.libml.data import core
label_desc: Use image node_id 4 for calling the DataSetsLabeled obj's underlying member method code with example usage: obj.width() and returns: self