code: def get_subclass(cls, name):
          
          for subclass in cls.__subclasses__():
              if subclass.name == name:
                  return subclass
          raise NameError("Not a valid Benchmark class: " + name)
docs: Get Benchmark subclass by name
          :param name: name returned by ``Benchmark.name`` property
          :return: instance of ``Benchmark`` class