code: def test_insert_edges_preserves_rangeindex(self):
      idx = Index(range(4, 9, 2))
  
      result = idx.insert(0, 2)
      expected = Index(range(2, 9, 2))
      tm.assert_index_equal(result, expected, exact=True)
  
      result = idx.insert(3, 10)
      expected = Index(range(4, 11, 2))
      tm.assert_index_equal(result, expected, exact=True)
  
imports: import numpy
  import pytest
  from pandas.core.dtypes.common import ensure_platform_int
  import pandas
  from pandas import Index, RangeIndex
  import pandas._testing
label_desc: Use image node_id 9 for calling the TestRangeIndex obj's underlying member method code with example usage: obj.test_insert_edges_preserves_rangeindex() without return types