On this page:
protoc-gen-racket:   Generate Racket Code for Protocol Buffers
7.1

protoc-gen-racket: Generate Racket Code for Protocol Buffers

    1 Programming Interface

    2 Generated Modules

    3 License

The generator module serves as a plug-in executable for ProtoC to facilitate the conversion between Protocol Buffer description files and Racket modules.

To use the protoc-gen-racket code converter, make sure the executable is in your path as well as the protoc compiler, then simply invoke protoc --racket_out=DIR FILE ...

You can also access the generator function pragramatically, if necessary.