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diff --git a/dom/bindings/test/TestInterfaceAsyncIterableSingleWithArgs.h b/dom/bindings/test/TestInterfaceAsyncIterableSingleWithArgs.h
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+++ b/dom/bindings/test/TestInterfaceAsyncIterableSingleWithArgs.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_TestInterfaceAsyncIterableSingleWithArgs_h
+#define mozilla_dom_TestInterfaceAsyncIterableSingleWithArgs_h
+
+#include "mozilla/dom/TestInterfaceAsyncIterableSingle.h"
+
+namespace mozilla::dom {
+
+struct TestInterfaceAsyncIteratorOptions;
+
+// Implementation of test binding for webidl iterable interfaces, using
+// primitives for value type
+class TestInterfaceAsyncIterableSingleWithArgs final
+    : public TestInterfaceAsyncIterableSingle {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
+      TestInterfaceAsyncIterableSingleWithArgs,
+      TestInterfaceAsyncIterableSingle)
+
+  using TestInterfaceAsyncIterableSingle::TestInterfaceAsyncIterableSingle;
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+  static already_AddRefed<TestInterfaceAsyncIterableSingleWithArgs> Constructor(
+      const GlobalObject& aGlobal, ErrorResult& rv);
+
+  using Iterator =
+      AsyncIterableIterator<TestInterfaceAsyncIterableSingleWithArgs>;
+
+  void InitAsyncIteratorData(IteratorData& aData, Iterator::IteratorType aType,
+                             const TestInterfaceAsyncIteratorOptions& aOptions,
+                             ErrorResult& aError);
+
+  already_AddRefed<Promise> GetNextIterationResult(
+      Iterator* aIterator, ErrorResult& aRv) MOZ_CAN_RUN_SCRIPT;
+  already_AddRefed<Promise> IteratorReturn(JSContext* aCx, Iterator* aIterator,
+                                           JS::Handle<JS::Value> aValue,
+                                           ErrorResult& aRv) MOZ_CAN_RUN_SCRIPT;
+
+  uint32_t ReturnCallCount() { return mReturnCallCount; }
+  void GetReturnLastCalledWith(JSContext* aCx,
+                               JS::MutableHandle<JS::Value> aReturnCalledWith) {
+    aReturnCalledWith.set(mReturnLastCalledWith);
+  }
+
+ private:
+  ~TestInterfaceAsyncIterableSingleWithArgs() = default;
+
+  JS::Heap<JS::Value> mReturnLastCalledWith;
+  uint32_t mReturnCallCount = 0;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_TestInterfaceAsyncIterableSingleWithArgs_h