Bug when do "from object_detection.utils import label_map_util"

Prerequisites

Please answer the following questions for yourself before submitting an issue.

• [ yes] I am using the latest TensorFlow Model Garden release and TensorFlow 2.
• [ yes] I am reporting the issue to the correct repository. (Model Garden official or research directory)
• [ yes] I checked to make sure that this issue has not already been filed.

1. The entire URL of the file you are using

https://github.com/tensorflow/models/research/object_detection/utils

2. Describe the bug

When we do the "from object_detection.utils import label_map_util" inside the notebook "object_detection_tutorial", we encouter this issue : cannot import name 'string_int_label_map_pb2' from 'object_detection.protos'
This issue is it right because inside folder "protos", the name of file is 'string_int_label_map_pb' not 'string_int_label_map_pb2' .

3. Steps to reproduce

Try to run step by step the notebook ""object_detection_tutorial"

4. Expected behavior

Change import of "'string_int_label_map_pb2' inside file "label_map_util" by "'string_int_label_map_pb'

5. Additional context

RAS

6. System information

Google Colab