These protos are generated from Resources.proto and Configuration.proto from the Android repo. They are found in the frameworks/base/tools/aapt2/ directory. To regenerate these if there are changes, run this command from the root of an Android checkout:
protoc --python_out=some_dir frameworks/base/tools/aapt2/Resources.proto
frameworks/base/tools/aapt2/Configuration.proto
Then copy the resulting *pb2.py files from some_dir here. To make sure Resources_pb2.py is able to import Configuration_pb2.py, replace the “from frameworks.base.tools.aapt2” portion of the import statement with “from .” so it will instead be imported from the current directory.