code: def test_difference_mismatched_step(self):
      obj = RangeIndex.from_range(range(1, 10), name="foo")
  
      result = obj.difference(obj[::2])
      expected = obj[1::2]
      tm.assert_index_equal(result, expected, exact=True)
  
      result = obj[::-1].difference(obj[::2], sort=False)
      tm.assert_index_equal(result, expected[::-1], exact=True)
  
      result = obj.difference(obj[1::2])
      expected = obj[::2]
      tm.assert_index_equal(result, expected, exact=True)
  
      result = obj[::-1].difference(obj[1::2], sort=False)
      tm.assert_index_equal(result, expected[::-1], exact=True)
  
imports: from datetime import datetime, timedelta
  from hypothesis import assume, given, strategies
  import numpy
  import pytest
  from pandas import Index, RangeIndex
  import pandas._testing
label_desc: Use image node_id 10 for calling the TestRangeIndexSetOps obj's underlying member method code with example usage: obj.test_difference_mismatched_step() without return types