code: def test_get_slice_expected_result():
      """Tests that get_slice produces return of the right length.
  
      Raises
      ------
      Exception if get_slice raises one
      """
      X_df = get_examples(mtype="pd.DataFrame")[0]
      assert len(get_slice(X_df, start=1, end=3)) == 2
  
      X_s = get_examples(mtype="pd.Series")[0]
      assert len(get_slice(X_s, start=1, end=3)) == 2
  
      X_np = get_examples(mtype="numpy3D")[0]
      assert get_slice(X_np, start=1, end=3).shape == (2, 2, 3)
  
file_path: sktime/sktime/datatypes/tests/test_utils.py
imports: import numpy
  import pandas
  import pytest
  from sktime.datatypes._check import check_is_mtype
  from sktime.datatypes._examples import get_examples
  from sktime.datatypes._utilities import _get_cutoff_from_index, get_cutoff, get_slice, get_time_index, get_window
  from sktime.utils._testing.hierarchical import _make_hierarchical
label_desc: Use image node_id 9 for calling a global function with example usage: test_get_slice_expected_result() without return types