Add Display for CloseReason

src/package.rs

@@ -19,6 +19,18 @@ pub enum CloseReason {
     SelfClosed,
 }
 
+impl std::fmt::Display for CloseReason {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            CloseReason::NotAcceptingConnections => write!(f, "Not accepting new connections"),
+            CloseReason::Kicked => write!(f, "Kicked"),
+            CloseReason::Error => write!(f, "Error"),
+            CloseReason::ShuttingDown => write!(f, "Shutting down"),
+            CloseReason::SelfClosed => write!(f, "Closed"),
+        }
+    }
+}
+
 #[derive(Debug, Serialize, Deserialize)]
 pub struct Messages<T> {
     pub ack: u64,