code: def test_cer_list_of_seqs(self):
      refs = ["werewolf", "I am your father"]
      char_error_rate = cer.compute(predictions=refs, references=refs)
      self.assertEqual(char_error_rate, 0.0)
  
      refs = ["werewolf", "I am your father", "doge"]
      preds = ["werxwolf", "I       am your father", "doge"]
      # S = 1, D = 0, I = 0, N = 28, CER = 1 / 28
      char_error_rate = cer.compute(predictions=preds, references=refs)
      self.assertTrue(abs(char_error_rate - 0.03571428) < 1e-6)
  
file_path: evaluate/metrics/cer/test_cer.py
imports: import unittest
  from cer import CER
label_desc: Use image node_id 7 for calling the TestCER obj's underlying member method code with example usage: obj.test_cer_list_of_seqs() without return types