From c69081331cbda3ad99e12a1b24ec907300d253a8 Mon Sep 17 00:00:00 2001
From: Jan Petykiewicz <jan@mpxd.net>
Date: Tue, 31 Jan 2023 22:33:45 -0800
Subject: [PATCH] set default for library to None

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

diff --git a/masque/builder/builder.py b/masque/builder/builder.py
index 4508adf..46f5737 100644
--- a/masque/builder/builder.py
+++ b/masque/builder/builder.py
@@ -103,7 +103,7 @@ class Builder(PortList):
 
     def __init__(
             self,
-            library: Optional[MutableLibrary],
+            library: Optional[MutableLibrary] = None,
             *,
             pattern: Optional[Pattern] = None,
             ports: Union[None, str, Mapping[str, Port]] = None,