code: def create_name_and_type(self, name: str, descriptor: str) -> NameAndType:
          
          self.append((
              12,
              self.create_utf8(name).index,
              self.create_utf8(descriptor).index
          ))
          return self.get(self.raw_count - 1)
docs: Creates a new :class:`ConstantNameAndType`, adding it to the pool and
          returning it.
  
          :param name: The name of the class.
          :param descriptor: The descriptor for `name`.