diff --git a/lib/6to5/templates/function-return-obj.js b/lib/6to5/templates/function-return-obj.js
new file mode 100644
index 0000000000..2ccd4cd89c
--- /dev/null
+++ b/lib/6to5/templates/function-return-obj.js
@@ -0,0 +1,3 @@
+(function (obj) {
+  return obj;
+})(OBJECT)
diff --git a/lib/6to5/templates/obj-key-set.js b/lib/6to5/templates/obj-key-set.js
new file mode 100644
index 0000000000..3f37b446d3
--- /dev/null
+++ b/lib/6to5/templates/obj-key-set.js
@@ -0,0 +1 @@
+obj[KEY] = VALUE;