default Admin getAdmin(final Map<String, Object> config) {
        throw new UnsupportedOperationException("Implementations of KafkaClientSupplier should implement the getAdmin() method.");
    }
Create an {@link Admin} which is used for internal topic management.

@param config Supplied by the {@link java.util.Properties} given to the {@link KafkaStreams}
@return an instance of {@link Admin}
streams/src/main/java/org/apache/kafka/streams/KafkaClientSupplier.java