1 files changed, 7 insertions, 2 deletions
diff --git a/src/transform.rs b/src/transform.rs
index 3f1c313..e9da115 100644
--- a/src/transform.rs
+++ b/src/transform.rs
@@ -24,8 +24,13 @@ pub enum TransformError {
 
 fn is_supported_collection(ident: &Ident) -> bool {
     // collections added here must implement IntoIterator & FromIterator
-    // FromIterator must not require bounds like Eq or Ord since these are Self-referential
-    ident == "Vec" || ident == "VecDeque" || ident == "LinkedList"
+    // when adding a type here don't forget to document it in the README
+    ident == "Vec"
+        || ident == "VecDeque"
+        || ident == "LinkedList"
+        || ident == "HashSet"
+        || ident == "BinaryHeap"
+        || ident == "BTreeSet"
 }
 
 impl AssocTypeConversions<'_> {