From 1e88f13faf10c769bb142ef00c1671171183ee95 Mon Sep 17 00:00:00 2001
From: Michael Abbott <32575566+mcabbott@users.noreply.github.com>
Date: Sat, 8 Oct 2022 22:35:21 -0400
Subject: [PATCH] fix 1.6

---
 src/functor.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/functor.jl b/src/functor.jl
index 91c0301..7585754 100644
--- a/src/functor.jl
+++ b/src/functor.jl
@@ -154,7 +154,7 @@ if VERSION < v"1.7"
   # Copied verbatim from Base, except omitting the macro:
   function ismutabletype(@nospecialize t)
       # @_total_meta  
-      t = unwrap_unionall(t)
+      t = Base.unwrap_unionall(t)
       return isa(t, DataType) && t.name.flags & 0x2 == 0x2
   end
 end