-(** A simple RPC for saying hello *)
+(** The protocol for communicating between the hello client and server.
+ There's a single RPC call exposed, which lets you send and receive a
+ The [bin_query] and [bin_response] arguments are values that contain logic
+ for binary serialization of the query and response types, in this case,
+ The version number is used when you want to mint new versions of an RPC
+ without disturbing older versions.
let hello_rpc = Rpc.Rpc.create