Run black, and add black to a "qa" target to make it a standardised process.

src/ifcopenshell-python/ifcopenshell/api/style/assign_material_style.py

@@ -63,8 +63,8 @@ class Usecase:
     def get_styled_representation(self, definition_representation):
         representations = [
             r
-            for r in definition_representation.Representations if r.is_a("IfcStyledRepresentation")
-            and r.ContextOfItems == self.settings["context"]
+            for r in definition_representation.Representations
+            if r.is_a("IfcStyledRepresentation") and r.ContextOfItems == self.settings["context"]
         ]
         if representations:
             return representations[0]