* Change Fn to fn for function types Signed-off-by: Nick Cameron <nrc@ncameron.org> * Support args and return types in function types Signed-off-by: Nick Cameron <nrc@ncameron.org> * Use fancy function types in the docs Signed-off-by: Nick Cameron <nrc@ncameron.org> --------- Signed-off-by: Nick Cameron <nrc@ncameron.org>