When supports GeneratorOptions::OutputMode::kEverythingInOneFile?

[nnnnoel]

I want to generate commonjs+dts file in just 2 file. but now, I add out option in grpc-web_out=, I cannot generate files with Tried to write the same file twice error.

when the commonjs+dts one file generate supports in one file and namespace, we can use this project usefully.