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

import edu.neu.ccs.demeter.*;
add: class Alternat_ns extends Neighbors_wc {
  protected Term_Bar_list alternat_ns;
  public Term_Bar_list get_alternat_ns() {{ return alternat_ns; }}
  public void set_alternat_ns(Term_Bar_list new_alternat_ns)
    {{ alternat_ns = new_alternat_ns; }}
  protected Common common;
  public Common get_common() {{ return common; }}
  public void set_common(Common new_common)
    {{ common = new_common; }}
  public constructor Alternat_ns() {{ super(); }}
  public constructor Alternat_ns(Any_vertex_List construct_ns, Term_Bar_list alternat_ns, Common common) {{
    super(construct_ns);
    set_alternat_ns(alternat_ns);
    set_common(common);
  }}
  public static Alternat_ns parse(java.io.Reader in)
    throws ParseException
  {{ return new Parser(in)._Alternat_ns(); }}
  public static Alternat_ns parse(java.io.InputStream in)
    throws ParseException
  {{ return new Parser(in)._Alternat_ns(); }}
  public static Alternat_ns parse(String s) {{
    try { return parse(new java.io.StringReader(s)); }
    catch (ParseException e) {
      throw new RuntimeException(e.toString());
    }
  }}
{{  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_) {
    universal_trv0_bef(_v_);
    ((UniversalVisitor) _v_).before_alternat_ns(this, alternat_ns);
    alternat_ns.universal_trv0(_v_);
    ((UniversalVisitor) _v_).after_alternat_ns(this, alternat_ns);
    if (common != null) {
      ((UniversalVisitor) _v_).before_common(this, common);
      common.universal_trv0(_v_);
      ((UniversalVisitor) _v_).after_common(this, common);
    }
    super.universal_trv0(_v_);
    universal_trv0_aft(_v_);
  }
}}
{{  void __trav_display_Cd_graph_trv_bef(DisplayVisitor __v0) {
    super.__trav_display_Cd_graph_trv_bef(__v0);
    ((DisplayVisitor) __v0).before(this);
  }
}}
{{  void __trav_display_Cd_graph_trv_aft(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).after(this);
    super.__trav_display_Cd_graph_trv_aft(__v0);
  }
}}
{{  void __trav_display_Cd_graph_trv(DisplayVisitor __v0) {
    __trav_display_Cd_graph_trv_bef(__v0);
    ((DisplayVisitor) __v0).before_alternat_ns(this, alternat_ns);
    alternat_ns.__trav_display_Cd_graph_trv(__v0);
    ((UniversalVisitor) __v0).after_alternat_ns(this, alternat_ns);
    if (common != null) {
      ((DisplayVisitor) __v0).before_common(this, common);
      common.__trav_display_Cd_graph_trv(__v0);
      ((UniversalVisitor) __v0).after_common(this, common);
    }
    super.__trav_display_Cd_graph_trv(__v0);
    __trav_display_Cd_graph_trv_aft(__v0);
  }
}}
}