core:
import edu.neu.ccs.demeter.dj.*;
import java.util.*;

import edu.neu.ccs.demeter.*;
add: abstract class Neighbors_wc extends Neighbors {
  protected Any_vertex_List construct_ns;
  public Any_vertex_List get_construct_ns() {{ return construct_ns; }}
  public void set_construct_ns(Any_vertex_List new_construct_ns)
    {{ construct_ns = new_construct_ns; }}
  public constructor Neighbors_wc() {{ super(); }}
  public constructor Neighbors_wc(Any_vertex_List construct_ns) {{
    super();
    set_construct_ns(construct_ns);
  }}
{{  void universal_trv0_bef(UniversalVisitor _v_) {
    super.universal_trv0_bef(_v_);
    ((UniversalVisitor) _v_).before(this);
  }
}}
{{  void universal_trv0_aft(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).after(this);
    super.universal_trv0_aft(_v_);
  }
}}
{{  void universal_trv0(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).before_construct_ns(this, construct_ns);
    construct_ns.universal_trv0(_v_);
    ((UniversalVisitor) _v_).after_construct_ns(this, construct_ns);
    super.universal_trv0(_v_);
  }
}}
{{  void __trav_display_Cd_graph_trv_bef(DisplayVisitor __v0) {
    super.__trav_display_Cd_graph_trv_bef(__v0);
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_display_Cd_graph_trv_aft(DisplayVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
    super.__trav_display_Cd_graph_trv_aft(__v0);
  }
}}
{{  void __trav_display_Cd_graph_trv(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).before_construct_ns(this, construct_ns);
    construct_ns.__trav_display_Cd_graph_trv(__v0);
    ((UniversalVisitor) __v0).after_construct_ns(this, construct_ns);
    super.__trav_display_Cd_graph_trv(__v0);
  }
}}
}