Resolve "Change the processing of the `stories` rule to a `height` GEM Taxonomy tag"

Closes #15 (closed)

building/02_process/height_and_floorspace/height_and_floorspace.py

@@ -42,9 +42,7 @@ class HeightAndFloorspaceRule:
         # to use that, we can also calculate the floorspace. The height tags in
         # OSM are also parsed, but no floorspace is estimated.
         try:
-            stories, floorspace = self.get_stories_and_floorspace_from_osm(
-                tags, area
-            )
+            stories, floorspace = self.get_stories_and_floorspace_from_osm(tags, area)
         # OSM can have unexpected data types in their tagging scheme, therefore we do not raise
         # an exception in case of a ValueError, but instead ignore the values.
         except ValueError:
@@ -97,9 +95,7 @@ class HeightAndFloorspaceRule:
         # Parse the story tags from OpenStreetMap.
         main_stories = self.tag_to_float(tags, "building:levels")
         roof_stories = self.tag_to_float(tags, "roof:levels")
-        underground_stories = self.tag_to_float(
-            tags, "building:levels:underground"
-        )
+        underground_stories = self.tag_to_float(tags, "building:levels:underground")
         min_stories = self.tag_to_float(tags, "building:min_level")
 
         # Parse the main stories and roof stories.