code: def __init__(self, variable, optional, ws, instring, loc):
      self.variable = variable
      self.optional = optional
      self.ws = ws
      self.index = None
      self.parent = None
      self.instring = instring
      self.loc = loc
  
imports: from collections import OrderedDict
  from pyparsing import lineno
  from pyparsing import col
  import re
  import copy
  from .exceptions import ConfigException, ConfigWrongTypeException, ConfigMissingException
label_desc: Use image node_id 1 to create a new ConfigSubstitution object from inherited base classes: object with example: obj = ConfigSubstitution(variable, optional, ws, instring, loc)