if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setReferer_SpanTerm(String referer) {
        setReferer_SpanTerm("referer", null);
    }

    public void setReferer_SpanTerm(String referer, ConditionOptionCall<SpanTermQueryBuilder> opLambda) {
        SpanTermQueryBuilder builder = regSpanTermQ("referer", referer);

    public void setReferer_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda) {
        setReferer_Terms("referer", opLambda, null);
    }

    public void setReferer_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda, OperatorCall<BsSearchLogCA> aggsLambda) {
        setReferer_Terms("referer", opLambda, aggsLambda);
    }

        <field>
          <name>downloadUrl</name>
          <version>4.0.0+</version>
          <description>
            The URL of the project's download page. If not given users will be
            referred to the homepage given by {@code url}.
            This is given to assist in locating artifacts that are not in the repository due to
            licensing restrictions.
          </description>