fix lint

tlambert03 · tlambert03 · commit 6f4155f70097 · 2024-06-08T13:53:44.000-04:00
diff --git a/src/ndv/viewer/_data_wrapper.py b/src/ndv/viewer/_data_wrapper.py
@@ -41,7 +41,7 @@ def __gt__(self, other: _T_contra, /) -> bool: ...
 
 
 ArrayT = TypeVar("ArrayT")
-_T = TypeVar("_T")
+_T = TypeVar("_T", bound=type)
 MAX_CHANNELS = 16
 
 # Global executor for slice requests
