(meta . ((interfaces . (spacing-interface separation-item-interface item-interface ))))
))
(SeparatingGroupSpanner
. (
(spacing-procedure . ,Separating_group_spanner::set_spacing_rods)
(meta . ((interfaces . (spacing-interface separation-item-interface item-interface ))))
))
(SeparatingGroupSpanner
. (
(spacing-procedure . ,Separating_group_spanner::set_spacing_rods)