class_docstr: Tests that the conf.json file is formatted properly and is sorted alphabetically
  on the top-level key
code: def __init__(self):
      self._logger = logging.getLogger()
  
imports: import json
  import os
  import logging
  from collections import OrderedDict
label_desc: Use image node_id 1 to create a new JsonFileSorter object  with example: obj = JsonFileSorter()