public CuratorDiscoverySpecBuilder useSsl(boolean useSsl) {
        checkState(converter == null, "converter() and useSsl() are mutually exclusive.");
        this.useSsl = useSsl;
        return this;
    }
Sets whether to connect an {@link Endpoint} using {@code sslPort} of {@link ServiceInstance}.
zookeeper3/src/main/java/com/linecorp/armeria/client/zookeeper/CuratorDiscoverySpecBuilder.java