code: def testSingleMatrix(self):
      for align in alignment_list:
          test_list = [
              square_cases(align),
              tall_cases(align),
              fat_cases(align),
          ]
          for mat, tests in test_list:
              for diag_index, (solution, _) in tests.items():
                  self._assertOpOutputMatchesExpected(
                      {
                          "input": mat[0],
                          "k": diag_index,
                          "align": align,
                      },
                      solution[0],
                  )
  
imports: import numpy
  from tensorflow.compiler.tests import xla_test
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_array_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 5 for calling the MatrixDiagPartTest obj's underlying member method code with example usage: obj.testSingleMatrix() without return types