public PulsarSourceBuilder<OUT> setAdminUrl(String adminUrl) {
        return setConfig(PULSAR_ADMIN_URL, adminUrl);
    }
Sets the admin endpoint for the PulsarAdmin of the PulsarSource.

@param adminUrl the url for the PulsarAdmin.
@return this PulsarSourceBuilder.
inlong-sort/sort-flink/sort-flink-v1.15/sort-connectors/pulsar/src/main/java/org/apache/inlong/sort/pulsar/source/PulsarSourceBuilder.java