code: def test_get_rolling_token_windows_empty():
      generator = get_rolling_token_windows(
          token_list=[],
          prefix_token=-100,
          max_seq_len=2,
          context_len=1,
      )
      n = 0
      for _ in generator:
          n += 1
      assert n == 0
  
file_path: lm-evaluation-harness/tests/test_utils.py
imports: from lm_eval.utils import get_rolling_token_windows, make_disjoint_window
label_desc: Use image node_id 7 for calling a global function with example usage: test_get_rolling_token_windows_empty() without return types