From d6c182ee03c0992ae33f1233902a06f835a7cdc2 Mon Sep 17 00:00:00 2001
From: pm3512 <aobolens@andrew.cmu.edu>
Date: Sun, 7 May 2023 00:18:25 -0400
Subject: [PATCH] replaced class test with assertion

---
 vulture/core.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/vulture/core.py b/vulture/core.py
index 42074abf..a3068d6b 100644
--- a/vulture/core.py
+++ b/vulture/core.py
@@ -600,8 +600,7 @@ def _is_locals_call(node):
     @staticmethod
     def _is_subclass(node, class_name):
         """Return True if the node is a subclass of the given class."""
-        if not isinstance(node, ast.ClassDef):
-            return False
+        assert isinstance(node, ast.ClassDef)
         for superclass in node.bases:
             if (
                 isinstance(superclass, ast.Name)