From 26df70d050c9c1464e2fb8d1672293b17989de94 Mon Sep 17 00:00:00 2001
From: Michael Dawson-Haggerty <mikedh@kerfed.com>
Date: Sat, 9 Nov 2024 14:48:28 -0500
Subject: [PATCH] unique_name type hints

---
 trimesh/util.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/trimesh/util.py b/trimesh/util.py
index b7fd45ca7..bd10a0d26 100644
--- a/trimesh/util.py
+++ b/trimesh/util.py
@@ -1,5 +1,5 @@
 """
-"Grab bag" of utility functions.
+Grab bag of utility functions.
 """
 
 import abc
@@ -2360,7 +2360,9 @@ def is_ccw(points, return_all=False):
 
 
 def unique_name(
-    start: str, contains: Union[Dict, Set, Sequence], counts: Optional[Dict] = None
+    start: Optional[str],
+    contains: Union[Set, Mapping, Sequence],
+    counts: Optional[Dict] = None,
 ):
     """
     Deterministically generate a unique name not