code: def test_insert_base(idx):
      result = idx[1:4]
  
      # test 0th element
      assert idx[0:4].equals(result.insert(0, idx[0]))
  
file_path: pandas/pandas/tests/indexes/multi/test_reshape.py
imports: from datetime import datetime
  import numpy
  import pytest
  import pytz
  import pandas
  from pandas import Index, MultiIndex
  import pandas._testing
label_desc: Use image node_id 9 for calling a global function with example usage: test_insert_base(idx) without return types