diff --git a/stubs/rx/internal/basic.pyi b/stubs/rx/internal/basic.pyi
new file mode 100644
--- /dev/null
+++ b/stubs/rx/internal/basic.pyi
@@ -0,0 +1,13 @@
+# Stubs for rx.internal.basic (Python 3)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any
+
+def noop(*args: Any, **kw: Any) -> None: ...
+def identity(x: Any): ...
+def default_now(): ...
+def default_comparer(x: Any, y: Any): ...
+def default_sub_comparer(x: Any, y: Any): ...
+def default_key_serializer(x: Any): ...
+def default_error(err: Any) -> None: ...