expand                                             Synthesizes the object(s)
                                                   specified, flattening
                                                   them into the level of
                                                   hierarchy above.
 [ -tree ]                                           Applies the constraint to
                                                     all levels of hierarchy
                                                     below the object(s)
                                                     specified.
 [ object_list ]                                     one or more module or
                                                     instance /current scope
