diff --git a/stubs/pydu/functional.pyi b/stubs/pydu/functional.pyi
new file mode 100644
index 0000000..0ef53da
--- /dev/null
+++ b/stubs/pydu/functional.pyi
@@ -0,0 +1,5 @@
+from typing import List, Callable, Any
+
+
+def compose(*funcs: List[Callable]):
+    return Any