Fix #4057. Data objects for the API are now in util.data instead of mixed into the shape builder utility and only depends on numpy.

src/ifcopenshell-python/ifcopenshell/api/geometry/add_slab_representation.py

@@ -27,8 +27,8 @@ class Usecase:
             "context": None,  # IfcGeometricRepresentationContext
             "depth": 0.2,
             "x_angle": 0,  # Radians
-            # Planes are defined either by ClippingInfo objects
-            # or by dictionaries of arguments for `ClippingInfo.parse`
+            # Planes are defined either by Clipping objects
+            # or by dictionaries of arguments for `Clipping.parse`
             "clippings": [],  # A list of planes that define clipping half space solids
         }
         for key, value in settings.items():
@@ -83,7 +83,7 @@ class Usecase:
                 new = ifcopenshell.util.element.copy(self.file, clipping)
                 new.FirstOperand = first_operand
                 first_operand = new
-            else:  # ClippingInfo
+            else:  # Clipping
                 first_operand = clipping.apply(self.file, first_operand, self.settings["unit_scale"])
         return first_operand