Why doc(hidden) on impl Service?

[l4l]

It seems that service is generated with doc(hidden) attribute (introduced in cd9133a):

tonic/tonic-build/src/server.rs

Lines 34 to 37 in 68d2ab3

	#[doc(hidden)]
	pub struct #server_service<T: #server_trait> {
	inner: _Inner<T>,
	}

This type is intended for direct using, e.g. in helloworld:

tonic/examples/src/helloworld/server.rs

Line 36 in 68d2ab3

.add_service(GreeterServer::new(greeter))

It seems that @carllerche also had this question: #1 (comment), but it left without answer.

[LucioFranco]

Uh good question, we should probably remove that :) I'd totally accept a PR for this I have limited time atm.