Module Rpc.Implementation A 'connection_state Implementation.t is something that knows how to respond to one query, given a 'connection_state. That is, you can create a 'connection_state
Implementation.t by providing a function which takes a query *and* a 'connection_state and provides a response.
The reason for this is that RPCs often do something like look something up in a master structure. This way, Implementation.ts can be created without having the master structure in your hands.
type 'connection_state t val description : _ t -> Async_rpc_kernel__Rpc.Description.t val lift : 'a t -> f:('b -> 'a ) -> 'b t We may want to use an 'a t implementation (perhaps provided by someone else) in a 'b t context. We can do this as long as we can map our state into the state expected by the original implementer.