code: def test_where_uint64(self):
      idx = Index([0, 6, 2], dtype=np.uint64)
      mask = np.array([False, True, False])
      other = np.array([1], dtype=np.int64)
  
      expected = Index([1, 6, 1], dtype=np.uint64)
  
      result = idx.where(mask, other)
      tm.assert_index_equal(result, expected)
  
      result = idx.putmask(~mask, other)
      tm.assert_index_equal(result, expected)
  
imports: import numpy
  import pytest
  from pandas.errors import InvalidIndexError
  from pandas import NA, Index, RangeIndex, Series, Timestamp
  import pandas._testing
  from pandas.core.arrays import ArrowExtensionArray, FloatingArray
label_desc: Use image node_id 2 for calling the TestWhere obj's underlying member method code with example usage: obj.test_where_uint64() without return types