class_docstr: Key/value record parser
class_docstr_tok: ["Key\/value","record","parser"]
code: def separator(self):
      # default separator = '='
      return str(self._configuration.get("separator", "="))
  
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 KVParser obj's underlying member method code with example usage: obj.separator() and returns: str