public boolean equals(changeVariable_args that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_evaluationExpression = true && this.isSetEvaluationExpression();
      boolean that_present_evaluationExpression = true && that.isSetEvaluationExpression();
      if (this_present_evaluationExpression || that_present_evaluationExpression) {
        if (!(this_present_evaluationExpression && that_present_evaluationExpression))
          return false;
        if (!this.evaluationExpression.equals(that.evaluationExpression))
          return false;
      }

      boolean this_present_value = true && this.isSetValue();
      boolean that_present_value = true && that.isSetValue();
      if (this_present_value || that_present_value) {
        if (!(this_present_value && that_present_value))
          return false;
        if (!this.value.equals(that.value))
          return false;
      }

      return true;
    }
public boolean equals(changeVariable_args that)