code: def testCollapseRepeatedFrontRepeats(self):
      collapsed, new_seq_lengths = ctc_ops.collapse_repeated(
          labels=[[1, 1, 1, 2, 2], [1, 1, 1, 2, 2], [1, 1, 1, 2, 2]],
          seq_length=[5, 4, 3],
      )
      self.assertAllEqual(new_seq_lengths, [2, 2, 1])
      self.assertAllEqual(collapsed, [[1, 2], [1, 2], [1, 0]])
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.eager import backprop
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import random_seed
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import ctc_ops
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import random_ops
  from tensorflow.python.ops import sparse_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 11 for calling the CTCLossTestV2 obj's underlying member method code with example usage: obj.testCollapseRepeatedFrontRepeats() without return types