def METHOD_NAME(self, b_obj, n_bv):
    """ Export b_obj as a NiCollisionData's bounding_volume sphere """
    n_bv.collision_type = 0
    matrix = math.get_object_bind(b_obj)
    center = matrix.translation
    n_bv.sphere.radius = b_obj.dimensions.x / 2
    sphere_center = n_bv.sphere.center
    sphere_center.x = center.x
    sphere_center.y = center.y
    sphere_center.z = center.z