carto/protobuf @ 6bbe197e9c1b6fc38cbdc45e3bf83fa7ced792a3

Feng Xiao 6bbe197e9c Down-integrate from google3.		vor 7 Jahren
..
protobuf	6bbe197e9c Down-integrate from google3.	vor 7 Jahren
__init__.py	786f80fe66 Add a modified patch from craigcitro@ to handle namespace sharing.	vor 10 Jahren