class CallsiteContextVar extends ContextVar {
  /*
   * If var is a local pointer or object, context is the callsite for the creation of the pointer or object. If var is a
   * instance field, context is the callsite for the creation of its base object.
   */
  public CgEdge context = null;

  public CallsiteContextVar() {
  }

  public CallsiteContextVar(CgEdge c, Node v) {
    context = c;
    var = v;
  }

  public CallsiteContextVar(CallsiteContextVar o) {
    context = o.context;
    var = o.var;
  }

  @Override
  public String toString() {
    return "<" + context.toString() + ", " + var.toString() + ">";
  }

  @Override
  public boolean equals(Object o) {
    CallsiteContextVar other = (CallsiteContextVar) o;
    return (other.context == context) && (other.var == var);
  }

  @Override
  public int hashCode() {<FILL_FUNCTION_BODY>}

  @Override
  public boolean contains(ContextVar cv) {
    CallsiteContextVar ccv = (CallsiteContextVar) cv;
    if (context == ccv.context) {
      return true;
    }
    return false;
  }

  @Override
  public boolean merge(ContextVar cv) {
    // The behavior of merging callsite context sensitive variables is undefined.
    return false;
  }

  @Override
  public boolean intersect(ContextVar cv) {
    return contains(cv);
  }
}

    int ch = 0;
    if (context != null) {
      ch = context.hashCode();
    }

    int ans = var.hashCode() + ch;
    if (ans < 0) {
      ans = -ans;
    }
    return ans;
  
<methods>public abstract boolean contains(soot.jimple.spark.geom.dataRep.ContextVar) ,public int getNumber() ,public abstract boolean intersect(soot.jimple.spark.geom.dataRep.ContextVar) ,public abstract boolean merge(soot.jimple.spark.geom.dataRep.ContextVar) ,public void setNumber(int) <variables>public int id,public soot.jimple.spark.pag.Node var