YOLOv2 section 1.3 tensorflow

Hi, I am trying to use YOLOv2 for my image object detection and I encounter issue on section 1.3.
Could you please help resolve my issue (the following is the error place)? Thank you.

ValueError Traceback (most recent call last)
in
45
46 #@markdown ##Load Key Dependencies
---> 47 get_ipython().run_line_magic('tensorflow_version', '1.x')
48
49 from pascal_voc_writer import Writer

1 frames
/usr/local/lib/python3.8/dist-packages/IPython/core/interactiveshell.py in run_line_magic(self, magic_name, line, _stack_depth)
2312 kwargs['local_ns'] = sys._getframe(stack_depth).f_locals
2313 with self.builtin_trap:
-> 2314 result = fn(*args, **kwargs)
2315 return result
2316

/usr/local/lib/python3.8/dist-packages/google/colab/_tensorflow_magics.py in _tensorflow_version(line)
33
34 if line.startswith("1"):
---> 35 raise ValueError(
36 # pylint: disable=line-too-long
37 textwrap.dedent("""\

ValueError: Tensorflow 1 is unsupported in Colab.

Your notebook should be updated to use Tensorflow 2.
See the guide at https://www.tensorflow.org/guide/migrate#migrate-from-tensorflow-1x-to-tensorflow-2.

Start with section 1.3 of the YOLOv2 notebook and the failing tensorflow_version('1.x') line. Read the TensorFlow migration guide linked in the report and determine the required TensorFlow 2 updates; done means the section runs in Google Colab without the unsupported-version error.