From 23473f17bf8869bb4f335e97402abdeffafd0427 Mon Sep 17 00:00:00 2001
From: Andrey Lebedev <andrey@lebedev.lt>
Date: Sat, 9 Dec 2023 23:09:23 +0200
Subject: [PATCH] Support mypy-1.7.1

---
 setup.cfg               | 2 +-
 src/mypy_zope/plugin.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/setup.cfg b/setup.cfg
index 9dbf634..1db7a2d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ packages =
     zope-stubs
 package_dir = =src
 install_requires =
-    mypy>=1.0.0,<1.6.0
+    mypy>=1.0.0,<1.8.0
     zope.interface
     zope.schema
 include_package_data = True
diff --git a/src/mypy_zope/plugin.py b/src/mypy_zope/plugin.py
index fcf0999..a285c77 100644
--- a/src/mypy_zope/plugin.py
+++ b/src/mypy_zope/plugin.py
@@ -496,7 +496,7 @@ def _get_metadata(self, typeinfo: TypeInfo) -> Dict[str, Any]:
 
     def _is_interface(self, typeinfo: TypeInfo) -> bool:
         md = self._get_metadata(typeinfo)
-        return md.get("is_interface", False)
+        return cast(bool, md.get("is_interface", False))
 
     def _adjust_interface_function(
         self,