code: def test_set_fill_value_unicode_py3(self):
      # Ticket #2733
      a = np.ma.masked_array(["a", "b", "c"], mask=[1, 0, 0])
      a.fill_value = "X"
      assert_(a.fill_value == "X")
  
file_path: catboost/contrib/python/numpy/py3/numpy/ma/tests/test_regression.py
imports: import numpy
  from numpy.testing import assert_, assert_array_equal, assert_allclose, suppress_warnings
label_desc: Use image node_id 8 for calling the TestRegression obj's underlying member method code with example usage: obj.test_set_fill_value_unicode_py3() without return types