code: def validate_all(self):
      self.validate_tokens()
      self.validate_literals()
      self.validate_rules()
      return self.error
  
imports: import re
  import sys
  import types
  import copy
  import os
  import inspect
label_desc: Use image node_id 3 for calling the LexerReflect obj's underlying member method code with example usage: obj.validate_all() and returns: self