docs: def find_extra_attrs(value):
      "finds extra attributes in *value* if they are there"
      extra = None
      value_is_from_database = True
  
      if hasattr(value, 'standin_value_is_from_database'):
          value_is_from_database = value.standin_value_is_from_database
  
          if value.stored_value != value.msg:
              extra = value.msg
          elif value.stored_value != value.fallback:
              extra = value.fallback
      
      return extra, value_is_from_database