private class IsTrueModelBuilder extends Builder<IsTrueModel> {
@Override
public IsTrueModel build() {
IsTrueModel model = new IsTrueModel();
model.trueBoolean = true;
model.trueString = "true";
model.trueInteger = 154;
model.trueLong = 123L;
model.trueFloat = 12.3F;