Bbox_splitter.get_info_list()

When splitting the area of interest into boxes, what does idxs_x and idxs_y stand for? I tried to visualize the data frame but I couldn’t make sense of it. And what kind of information does info_list encompass?
I tried to look it up in the documentation but I didn’t find anything that could help (or maybe I haven’t looked enough).

# Create the splitter to obtain a list of bboxes (large splitter boxes)
bbox_splitter = BBoxSplitter([country_shape], country_crs, (38, 81))

bbox_list = np.array(bbox_splitter.get_bbox_list())
info_list = np.array(bbox_splitter.get_info_list())

# Prepare info of selected EOPatches
geometry = [Polygon(bbox.get_polygon()) for bbox in bbox_list]
idxs_x = [info['index_x'] for info in info_list]
idxs_y = [info['index_y'] for info in info_list]

df = pd.DataFrame({'index_x':idxs_x, 'index_y':idxs_y})
gdf = gpd.GeoDataFrame(df,crs=country.crs, geometry=geometry)
gdf.head()

here is the resultant data frame:

It’s a GeoDataFrame. Try gdf.plot(), or export it to geojson/shapefile/… and plot it in QGIS or similar.

This is what I got when I plotted it, not sure though what it supposed to mean.