This directory contains proto messages used by gRPC Swift. These are split across different directories:
upstream contains .proto files pulled from upstream sources. You can
update them using fetch.sh. Note that doing so will replace upstream in
its entirety.examples contains .proto files used in common examples.tests contains .proto files used in tests.You can run generate.sh to re-generate all files generated using protoc with
the Swift and gRPC Swift plugins.