class_docstr: ctc utils unittest
class_docstr_tok: ["ctc","utils","unittest"]
code: def setUp(self):
      super().setUp()
      """ setup """
      self.logits = np.asarray(
          [
              [
                  [
                      0.633766,
                      0.221185,
                      0.0917319,
                      0.0129757,
                      0.0142857,
                      0.0260553,
                  ],
                  [
                      0.111121,
                      0.588392,
                      0.278779,
                      0.0055756,
                      0.00569609,
                      0.010436,
                  ],
                  [
                      0.0357786,
                      0.633813,
                      0.321418,
                      0.00249248,
                      0.00272882,
                      0.0037688,
                  ],
                  [
                      0.0663296,
                      0.643849,
                      0.280111,
                      0.00283995,
                      0.0035545,
                      0.00331533,
                  ],
                  [
                      0.158235,
                      0.196634,
                      0.123377,
                      0.50648837,
                      0.00903441,
                      0.00623107,
                  ],
              ],
              [
                  [
                      0.30176,
                      0.28562,
                      0.0831517,
                      0.0862751,
                      0.0816851,
                      0.161508,
                  ],
                  [
                      0.24082,
                      0.397533,
                      0.0557226,
                      0.0546814,
                      0.0557528,
                      0.19549,
                  ],
                  [
                      0.230246,
                      0.450868,
                      0.0389607,
                      0.038309,
                      0.0391602,
                      0.202456,
                  ],
                  [
                      0.280884,
                      0.429522,
                      0.0326593,
                      0.0339046,
                      0.0326856,
                      0.190345,
                  ],
                  [
                      0.423286,
                      0.315517,
                      0.0338439,
                      0.0393744,
                      0.0339315,
                      0.154046,
                  ],
              ],
          ],
          dtype=np.float32,
      )
  
      self.labels = np.asarray(
          [[1, 1, 1, 3], [1, 1, 1, 0]], dtype=np.int32
      )
  
file_path: delta/delta/utils/ctc_utils_test.py
imports: import numpy
  import delta.compat
  from delta.utils import ctc_utils
label_desc: Use image node_id 1 for calling the CTCUtilTest obj's underlying member method code with example usage: obj.setUp() without return types