add TODO comment

Technologicat · Technologicat · commit 41cca4625773 · 2021-05-17T16:44:41.000+03:00
diff --git a/unpythonic/dispatch.py b/unpythonic/dispatch.py
@@ -19,6 +19,10 @@
     https://docs.python.org/3/library/typing.html#typing.overload
 """
 
+# TODO: Reimplement in the same spirit as `functools.singledispatch`?
+# TODO: The complication is, we support `typing` type specifications, not only concrete types.
+# TODO: OTOH, `singledispatch` does handle the specific case of ABCs, via the subtype hooks.
+
 __all__ = ["isgeneric", "generic", "augment", "typed",
            "methods", "format_methods", "list_methods"]
 
