class_docstr: Data Model
class_docstr_tok: ["Data","Model"]
code: def normalize_key(prop_key):
      if keyword.iskeyword(prop_key):
          prop_key += "_"
      return prop_key.replace(".", "__")
  
imports: import keyword
  import enum
  import json
  from datetime import datetime
  import jsonschema
  from enum import Enum
  import six
label_desc: Use image node_id 7 for calling the DataModel obj's underlying member method code with example usage: obj.normalize_key(prop_key) and returns: prop_key