From aefd79fb5d8cc6e23d549fb19eaad0ff2c228320 Mon Sep 17 00:00:00 2001
From: Jan Petykiewicz <jan@mpxd.net>
Date: Mon, 23 Oct 2023 10:24:49 -0700
Subject: [PATCH] Pattern should be a forward reference

---
 masque/library.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/masque/library.py b/masque/library.py
index 947f6b9..f9469e4 100644
--- a/masque/library.py
+++ b/masque/library.py
@@ -50,7 +50,7 @@ class visitor_function_t(Protocol):
             hierarchy: tuple[str | None, ...],
             memo: dict,
             transform: NDArray[numpy.float64] | Literal[False],
-            ) -> Pattern:
+            ) -> 'Pattern':
         ...