@Override
    public ZooKeeperEndpointGroupBuilder selectionTimeoutMillis(long selectionTimeoutMillis) {
        dynamicEndpointGroupBuilder.selectionTimeoutMillis(selectionTimeoutMillis);
        return this;
    }
Sets the timeout to wait until a successful {@link Endpoint} selection.
{@code 0} disables the timeout.
If unspecified, {@link Flags#defaultResponseTimeoutMillis()} is used by default.
zookeeper3/src/main/java/com/linecorp/armeria/client/zookeeper/ZooKeeperEndpointGroupBuilder.java