old_contents: import base64
  
  INPUT_FILE = 'image.jpg'
  OUTPUT_FILE = '/tmp/image_b64.json'
  
  """Open image and convert it to Base64"""
  with open(INPUT_FILE, 'rb') as f:
    jpeg_bytes = base64.b64encode(f.read()).decode('utf-8')
    predict_request = '{"image_bytes": {"b64": "%s"}}' % jpeg_bytes
    # Write JSON to file
    with open(OUTPUT_FILE, 'w') as f:
      f.write(predict_request)
  
new_contents: import base64
  
  INPUT_FILE = 'image.jpg'
  OUTPUT_FILE = '/tmp/image_b64.json'
  
  """Open image and convert it to Base64"""
  with open(INPUT_FILE, 'rb') as input_file:
    jpeg_bytes = base64.b64encode(input_file.read()).decode('utf-8')
    predict_request = '{"image_bytes": {"b64": "%s"}}' % jpeg_bytes
    # Write JSON to file
    with open(OUTPUT_FILE, 'w') as output_file:
      output_file.write(predict_request)
  
subject: Update convert_b64.py