code: def _is_declaration(self, name, value):
          
          if isinstance(value, (classmethod, staticmethod)):
              return False
          elif enums.get_builder_phase(value):
              # All objects with a defined 'builder phase' are declarations.
              return True
          return not name.startswith("_")
docs: Determines if a class attribute is a field value declaration.
  
          Based on the name and value of the class attribute, return ``True`` if
          it looks like a declaration of a default field value, ``False`` if it
          is private (name starts with '_') or a classmethod or staticmethod.