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

import edu.neu.ccs.demeter.*;
add: class Weight {
  protected float v;
  public float get_v() {{ return v; }}
  public void set_v(float new_v)
    {{ v = new_v; }}
  public constructor Weight() {{ super(); }}
  public constructor Weight(float v) {{
    super();
    set_v(v);
  }}
  public static Weight parse(java.io.Reader in)
    throws ParseException
  {{ return new Parser(in)._Weight(); }}
  public static Weight parse(java.io.InputStream in)
    throws ParseException
  {{ return new Parser(in)._Weight(); }}
  public static Weight 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_) {
    ((UniversalVisitor) _v_).before(this);
  }
}}
{{  void universal_trv0_aft(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).after(this);
  }
}}
{{  void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    ((UniversalVisitor) _v_).before_v(this, v);
    ((UniversalVisitor) _v_).after_v(this, v);
    universal_trv0_aft(_v_);
  }
}}
{{  void __trav_print_Formula_trv_bef(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).before(this);
  }
}}
{{  void __trav_print_Formula_trv_aft(PrintVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
  }
}}
{{  void __trav_print_Formula_trv(PrintVisitor __v0) {
    __trav_print_Formula_trv_bef(__v0);
    ((PrintVisitor) __v0).before_v(this, v);
    ((UniversalVisitor) __v0).after_v(this, v);
    __trav_print_Formula_trv_aft(__v0);
  }
}}
}