Array(Protocol): rename __getitem__ parameter

Author: matthiasdiener

arraycontext/context.py

@@ -217,7 +217,7 @@ def dtype(self) -> np.dtype[Any]:
     # If you'd  like to see how, try changing the Any to
     # AxisIndex = slice | int | "Array"
     # Index = AxisIndex |tuple[AxisIndex]
-    def __getitem__(self, index: Any) -> Array:
+    def __getitem__(self, key: Any) -> Array:
         ...
 
     # some basic arithmetic that's supposed to work