class_docstr: JSON record parser
class_docstr_tok: ["JSON","record","parser"]
code: def json_regex_key(self):
      return self._configuration.get("json_regex_key")
  
imports: from abc import ABCMeta, abstractmethod
  from copy import deepcopy
  import csv
  from fnmatch import fnmatch
  import json
  import logging
  import re
  import io
  import jmespath
  from streamalert.shared.logger import get_logger
label_desc: Use image node_id 2 for calling the JSONParser obj's underlying member method code with example usage: obj.json_regex_key() and returns: self