public static void writeSettingsToStream(Settings settings, StreamOutput out) throws IOException {
out.writeVInt(settings.getAsMap().size());
for (Map.Entry<String, String> entry : settings.getAsMap().entrySet()) {
out.writeString(entry.getKey());
out.writeString(entry.getValue());
}
}
/** Sets all the provided settings. */
public Builder put(Settings settings) {
map.putAll(settings.getAsMap());
classLoader = settings.getClassLoaderIfSet();
return this;
}