Split Peerset into PeerStore & ProtocolControllers (#13611)

substrate/client/utils/src/mpsc.rs

@@ -18,8 +18,10 @@
 
 //! Code to meter unbounded channels.
 
+pub use async_channel::{TryRecvError, TrySendError};
+
 use crate::metrics::UNBOUNDED_CHANNELS_COUNTER;
-use async_channel::{Receiver, Sender, TryRecvError, TrySendError};
+use async_channel::{Receiver, Sender};
 use futures::{
 	stream::{FusedStream, Stream},
 	task::{Context, Poll},