use std::io::Result; fn main() -> Result<()> { let mut prost_build = prost_build::Config::new(); prost_build.protoc_arg("--experimental_allow_proto3_optional"); prost_build.compile_protos( &[ "protocol/ffi.proto", "protocol/handle.proto", "protocol/room.proto", "protocol/track.proto", "protocol/participant.proto", "protocol/video_frame.proto", "protocol/audio_frame.proto", ], &["protocol/"], )?; Ok(()) }