no need to explicitly serialize the grid

src/c3nav/mapdata/api/map.py

@@ -50,7 +50,7 @@ def map_settings(request):
     return MapSettingsSchema(
         initial_bounds=initial_bounds,
         initial_level=settings.INITIAL_LEVEL or None,
-        grid=grid.serialize().model_dump() if grid else None,
+        grid=grid if grid else None,
         tile_server=settings.TILE_CACHE_SERVER,
     )
 

src/c3nav/mapdata/grid.py

@@ -50,14 +50,6 @@ class Grid(AbstractGrid):
         else:
             raise ValueError('column coordinates are not ordered')
 
-    def serialize(self) -> GridSchema:
-        return GridSchema(
-            rows=self.rows,
-            cols=self.cols,
-            invert_x=self.invert_y,
-            invert_y=self.invert_y,
-        )
-
     def get_square_for_point(self, x, y):
         x = bisect.bisect(self.cols, x)
         if x <= 0 or x >= len(self.cols):