code: def find_file(root_path, file_name):
      for root, dirs, files in os.walk(root_path):
          if file_name in files:
              return os.path.join(root, file_name)
  
file_path: sagemaker-python-sdk/tests/data/mxnet_mnist/mnist_neo.py
imports: from __future__ import absolute_import
  import argparse
  import gzip
  import json
  import logging
  import os
  import struct
  import mxnet
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: find_file(root_path, file_name) and returns: os