class_docstr: ctc python decode unittest
code: def setUp(self):
      super().setUp()
      """ setup """
      self.model_output = [
          [
              [0.1, 0.3, 0.5, 0.1],
              [0.1, 0.3, 0.5, 0.1],
              [0.5, 0.1, 0.3, 0.1],
          ],
          [[0.1, 0.2, 0.3, 0.4], [0.3, 0.4, 0.2, 0.1]],
      ]
  
imports: import delta.compat
  from delta.utils.decode import py_ctc
label_desc: Use image node_id 1 for calling the PyCtcTest obj's underlying member method code with example usage: obj.setUp() without return types