add in set type hint

trimesh/typed.py

@@ -20,9 +20,19 @@
     List = list
     Tuple = tuple
     Dict = dict
+    Set = set
     from collections.abc import Callable, Hashable, Iterable, Mapping, Sequence
 else:
-    from typing import Callable, Dict, Hashable, Iterable, List, Mapping, Sequence, Tuple
+    from typing import (
+        Callable,
+        Dict,
+        Hashable,
+        Iterable,
+        List,
+        Mapping,
+        Sequence,
+        Tuple,
+    )
 
 # most loader routes take `file_obj` which can either be
 # a file-like object or a file path, or sometimes a dict