removing dup type vars

src/bloqade/geometry/dialects/grid/types.py

@@ -202,6 +202,9 @@ def get(self, idx: tuple[int, int]) -> tuple[float, float]:
         """
         return (self.x_positions[idx[0]], self.y_positions[idx[1]])
 
+    Nx = TypeVar("Nx")
+    Ny = TypeVar("Ny")
+
     def get_view(
         self, x_indices: ilist.IList[int, Nx], y_indices: ilist.IList[int, Ny]
     ) -> "Grid[Nx, Ny]":
@@ -216,9 +219,6 @@ def get_view(
         """
         return SubGrid(parent=self, x_indices=x_indices, y_indices=y_indices)
 
-    Ny = TypeVar("Ny")
-    Nx = TypeVar("Nx")
-
     @overload
     def __getitem__(
         self, indices: tuple[int, int]