ax = df_wm.plot(figsize=(10, 10), alpha=0.5, edgecolor="k")
cx.add_basemap(ax, zoom=12)

---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Cell In[7], line 2
 1 ax = df_wm.plot(figsize=(10, 10), alpha=0.5, edgecolor="k")
----> 2 cx.add_basemap(ax, zoom=12)
File ~/checkouts/readthedocs.org/user_builds/geopandas/conda/latest/lib/python3.12/site-packages/contextily/plotting.py:134, in add_basemap(ax, zoom, source, interpolation, attribution, attribution_size, reset_extent, crs, resampling, zoom_adjust, **extra_imshow_args)
 130 left, right, bottom, top = _reproj_bb(
 131 left, right, bottom, top, crs, "epsg:3857"
 132 )
 133 # Download image
--> 134 image, extent = bounds2img(
 135 left, bottom, right, top, zoom=zoom, source=source, ll=False, zoom_adjust=zoom_adjust
 136 )
 137 # Warping
 138 if crs is not None:
File ~/checkouts/readthedocs.org/user_builds/geopandas/conda/latest/lib/python3.12/site-packages/contextily/tile.py:265, in bounds2img(w, s, e, n, zoom, source, ll, wait, max_retries, n_connections, use_cache, zoom_adjust)
 262 arrays = Parallel(n_jobs=n_connections, prefer=preferred_backend)(
 263 delayed(fetch_tile_fn)(tile_url, wait, max_retries) for tile_url in tile_urls)
 264 # merge downloaded tiles
--> 265 merged, extent = _merge_tiles(tiles, arrays)
 266 # lon/lat extent --> Spheric Mercator
 267 west, south, east, north = extent
File ~/checkouts/readthedocs.org/user_builds/geopandas/conda/latest/lib/python3.12/site-packages/contextily/tile.py:670, in _merge_tiles(tiles, arrays)
 668 for ind, arr in zip(indices, arrays):
 669 x, y = ind
--> 670 img[y * h : (y + 1) * h, x * w : (x + 1) * w, :] = arr
 672 bounds = np.array([mt.bounds(t) for t in tiles])
 673 west, south, east, north = (
 674 min(bounds[:, 0]),
 675 min(bounds[:, 1]),
 676 max(bounds[:, 2]),
 677 max(bounds[:, 3]),
 678 )
TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NoneType'