Register an FFI method that communicates using a flatbuffer protocol.
format description: #[ffi_fb_method]
command to check expanded code: cargo +nightly rustc -- -Zunstable-options --pretty=expanded
Register an FFI method that communicates using a protobuf protocol.
format description: #[ffi_pb_method]
command to check expanded code: cargo +nightly rustc -- -Zunstable-options --pretty=expanded
Register an FFI method that communicates using a custom protocol.
format description: #[ffi_raw_method]
command to check expanded code: cargo +nightly rustc -- -Zunstable-options --pretty=expanded