add constraint to Credential

Xuanwo · Aug 6, 2024 · bdc1747 · bdc1747
1 parent 4e05f9c
commit bdc1747
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/sign.rs b/src/sign.rs
@@ -1,3 +1,4 @@
+use std::fmt::Debug;
 use std::time::Duration;
 
 /// On some cases like https://github.com/apache/iceberg-rust/issues/506, user may want to
@@ -6,7 +7,7 @@ use std::time::Duration;
 #[async_trait::async_trait]
 pub trait Sign: 'static {
     /// Credential type for this signer.
-    type Credential;
+    type Credential: Debug + Send + Sync + Unpin + 'static;
 
     /// Sign the request with headers.
     async fn sign(