+#[cfg(feature = "std")]
+use std::error;
+#[cfg(not(c_bindings))]
+use {
+ crate::ln::channelmanager::{SimpleArcChannelManager, SimpleRefChannelManager},
+ crate::onion_message::messenger::{SimpleArcOnionMessenger, SimpleRefOnionMessenger},
+ crate::routing::gossip::{NetworkGraph, P2PGossipSync},
+ crate::sign::KeysManager,
+ crate::sync::Arc,
+};