fix linter warnings

src/utils/types.rs

@@ -158,6 +158,13 @@ pub struct InnerMap {
     pub authorization: Option<Arc<InnerAuth>>,
 }
 
+#[allow(dead_code)]
+impl Default for InnerMap {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 #[allow(dead_code)]
 impl InnerMap {
     pub fn new() -> Self {