diff --git a/guest-examples/swap-info/src/main.rs b/guest-examples/swap-info/src/main.rs
index 562fa67..8143a47 100644
--- a/guest-examples/swap-info/src/main.rs
+++ b/guest-examples/swap-info/src/main.rs
@@ -67,12 +67,16 @@ mod swap_info {
     }
 
     #[program::entrypoint]
-    fn entrypoint_list_pools() -> alloc::vec::Vec<(AssetId, AssetId)> {
-        list_pools()
-    }
-
-    #[program::entrypoint]
-    fn entrypoint_asset_info(asset: AssetId) -> Option<AssetInfo> {
-        asset_info(asset)
+    fn entrypoint_list_pools() -> alloc::vec::Vec<(AssetInfo, AssetInfo)> {
+        let pools = list_pools();
+        let mut result = alloc::vec::Vec::new();
+        for pool in pools {
+            let asset1_info = asset_info(pool.0.clone());
+            let asset2_info = asset_info(pool.1.clone());
+            if let (Some(a1), Some(a2)) = (asset1_info, asset2_info) {
+                result.push((a1, a2));
+            }
+        }
+        result
     }
 }
diff --git a/pvq-test-runner/src/lib.rs b/pvq-test-runner/src/lib.rs
index 4897dda..8c51b62 100644
--- a/pvq-test-runner/src/lib.rs
+++ b/pvq-test-runner/src/lib.rs
@@ -18,6 +18,7 @@ pub enum ExtensionFungiblesFunctions {
 #[extensions_impl]
 pub mod extensions {
     use parity_scale_codec::Decode;
+
     #[extensions_impl::impl_struct]
     pub struct ExtensionsImpl;