code: def test_putmask_multiindex_other(self):
      # GH#43212 `value` is also a MultiIndex
  
      left = MultiIndex.from_tuples(
          [(np.nan, 6), (np.nan, 6), ("a", 4)]
      )
      right = MultiIndex.from_tuples([("a", 1), ("a", 1), ("d", 1)])
      mask = np.array([True, True, False])
  
      result = left.putmask(mask, right)
  
      expected = MultiIndex.from_tuples([right[0], right[1], left[2]])
      tm.assert_index_equal(result, expected)
  
imports: from datetime import timedelta
  import re
  import numpy
  import pytest
  from pandas._libs import index
  from pandas.errors import InvalidIndexError, PerformanceWarning
  import pandas
  from pandas import Categorical, DataFrame, Index, MultiIndex, date_range
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestPutmask obj's underlying member method code with example usage: obj.test_putmask_multiindex_other() without return types