Replicator how to orient objects for scatter_2d

[shiven2001]

I want to add cracks to walls on apartments generated using infinigen. The issue I am having is that I random distribute the defects on the wall but I dont know what orientation I should use to make sure they are flushed with the walls. Because the wall is not a singular wall mesh but a a complete room mesh.

  for prim in wall_mesh_prims:
          path_str = str(prim.GetPath())
          try:
              mesh = UsdGeom.Mesh(prim)
              normals = mesh.GetNormalsAttr().Get()
  
              # Create defects for this wall
              wall_defects = rep.create.plane(
                  position=(0, 0, 0),
                  scale=(1.0, 1.0, 1.0),
                  count=num_per_wall,
              )
  
              with wall_defects:
                  rep.randomizer.materials(defect_mats)
                  rep.randomizer.scatter_2d(
                      surface_prims=[path_str],  # Scatter only on this wall
                      check_for_collisions=False,
                  )

any ideas?