code: def _get_schedule_param(self):
      return "sparsity_level"
  
imports: import logging
  import warnings
  from torch.testing._internal.common_utils import TestCase
  from torch import nn
  import torch
  from typing import Tuple
  import copy
  from torch.ao.pruning._experimental.data_sparsifier import DataNormSparsifier
  from torch.ao.pruning._experimental.data_scheduler import BaseDataScheduler
label_desc: Use image node_id 4 for calling the TestBaseDataScheduler obj's underlying member method code with example usage: obj._get_schedule_param() and returns: str