code: def loads(cls, value):
      '''Returns mapping type deserialized `value`.'''
      if len(value) == 1 and cls.sentinel in value:
        value = value[cls.sentinel]
      return valuf loads(cls, value):
      '''Returns mapping type deserialized `value`.'''
      if len(value) == 1 and cls.sentinel in value:
        value = value[cls.sentinel]
      return value
docs: Returns mapping type deserialized `value`.