code: def _testBasicMat(self, fn=array_ops.where):
      x = np.asarray([[True, False], [True, False]])
  
      # Ensure RowMajor mode
      truth = np.asarray([[0, 0], [1, 0]], dtype=np.int64)
  
      self._testWhere(x, truth, None, fn)
  
imports: import itertools
  import sys
  import numpy
  from tensorflow.python.client import session
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import random_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.platform import benchmark
  from tensorflow.python.platform import test
label_desc: Use image node_id 5 for calling the WhereOpTest obj's underlying member method code with example usage: obj._testBasicMat(fn) without return types