code: def delete(self, experiment_name):
          
          if not experiment_name.startswith(self.__tag_prefix):
              target_tag = self.__tag_prefix + experiment_name
          else:
              target_tag = experiment_name
          if target_tag not in [t.name for t in self.__repository.tags]:
              return False
          self.__repository.delete_tag(target_tag)
          return target_tag not in [t.name for t in self.__repository.tags]
docs: Delete an experiment by removing the associated tag.
          :param experiment_name: the name of the experiment to be deleted
          :type experiment_name: str
          :rtype bool
          :return if deleting succeeded