code: def test_transcode_bad_utf8_start_with_strict_errors(self):
      bad_string = b"\xffabcd"
      with self.cached_session() as sess:
          outputs = string_ops.unicode_transcode(
              bad_string,
              input_encoding="UTF-8",
              output_encoding="UTF-8",
              errors="strict",
          )
          with self.assertRaisesOpError(
              "Invalid formatting on input string"
          ):
              self.evaluate(outputs)
  
imports: from absl.testing import parameterized
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import string_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 8 for calling the UnicodeTranscodeOpTest obj's underlying member method code with example usage: obj.test_transcode_bad_utf8_start_with_strict_errors() without return types