code: def test_argsort_with_na(self):
      # GH48495
      arrays = [
          array([2, NA, 1], dtype="Int64"),
          array([1, 2, 3], dtype="Int64"),
      ]
      index = MultiIndex.from_arrays(arrays)
      result = index.argsort()
      expected = np.array([2, 0, 1], dtype=np.intp)
      tm.assert_numpy_array_equal(result, expected)
  
file_path: pandas/pandas/tests/indexing/multiindex/test_sorted.py
imports: import numpy
  import pytest
  from pandas import NA, DataFrame, MultiIndex, Series, array
  import pandas._testing
label_desc: Use image node_id 5 for calling the TestMultiIndexSorted obj's underlying member method code with example usage: obj.test_argsort_with_na() without return types