class_docstr: CSV record parser
class_docstr_tok: ["CSV","record","parser"]
code: def escapechar(self):
      # default escapechar = None
      # only cast to string if it exists since casting NoneType to string will result in 'None'
      return (
          str(self._configuration["escapechar"])
          if "escapechar" in self._configuration
          else None
      )
  
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 3 for calling the CSVParser obj's underlying member method code with example usage: obj.escapechar() and returns: unknown