code: def has_value(cls, value):
      return value in cls._value2member_map_
  
imports: import keyword
  import enum
  import json
  from datetime import datetime
  import jsonschema
  from enum import Enum
  import six
label_desc: Use image node_id 2 for calling the StringEnum obj's underlying member method code with example usage: obj.has_value(cls, value) and returns: unknown