code: def tearDown(self) -> None:
      torch.cuda.empty_cache()
      super().tearDown()
  
file_path: apex/tests/L0/run_transformer/test_fused_rope.py
imports: import itertools
  import torch
  from torch.testing._internal import common_utils
  from apex.transformer.functional import fused_apply_rotary_pos_emb, fused_apply_rotary_pos_emb_cached, fused_apply_rotary_pos_emb_thd
label_desc: Use image node_id 2 for calling the TestFusedRoPE obj's underlying member method code with example usage: obj.tearDown() without return types