diff --git a/easytier/src/proto/utils.rs b/easytier/src/proto/utils.rs
index 0f37f89b..82980692 100644
--- a/easytier/src/proto/utils.rs
+++ b/easytier/src/proto/utils.rs
@@ -1,9 +1,13 @@
+use crate::utils::MapTryInto;
+use derivative::Derivative;
 use derive_more::{Deref, DerefMut, From, IntoIterator};
 use itertools::Itertools;
 use serde::{Deserialize, Serialize};
-use crate::utils::MapTryInto;
 
-pub trait MessageModel<Message: prost::Message>: Into<Message> + for<'m> TryFrom<&'m Message> {}
+pub trait MessageModel<Message: prost::Message>:
+    Into<Message> + for<'m> TryFrom<&'m Message>
+{
+}
 
 impl<Message, Model> MessageModel<Message> for Model
 where
@@ -13,16 +17,27 @@ where
 }
 
 #[derive(
-    Debug, Clone, PartialEq, Eq, Hash, From, Deref, DerefMut, Serialize, Deserialize, IntoIterator,
+    Derivative,
+    Debug,
+    Clone,
+    PartialEq,
+    Eq,
+    Hash,
+    From,
+    Deref,
+    DerefMut,
+    Serialize,
+    Deserialize,
+    IntoIterator,
 )]
+#[derivative(Default(bound = ""))]
 #[serde(transparent)]
 #[into_iterator(owned, ref, ref_mut)]
 pub struct RepeatedMessageModel<Model>(Vec<Model>);
 
-impl<Model> Default for RepeatedMessageModel<Model>
-{
-    fn default() -> Self {
-        Self(vec![])
+impl<Model> RepeatedMessageModel<Model> {
+    pub fn into_inner(self) -> Vec<Model> {
+        self.0
     }
 }
 
@@ -34,7 +49,7 @@ where
     type Error = <Model as TryFrom<&'m Message>>::Error;
 
     fn try_from(value: &'m Vec<Message>) -> Result<Self, Self::Error> {
-        Ok(Self(value.map_try_into().collect::<Result<Vec<_>, _>>()?))
+        Ok(Self(value.into_iter().map_try_into().try_collect()?))
     }
 }