class AbstractConfig {

    public Map<String, Object> originalsWithPrefix(String prefix) {
        return originalsWithPrefix(prefix, true);
    }

    @SuppressWarnings("unchecked") public  AbstractConfig(ConfigDef definition, Map<?, ?> originals,  Map<String, ?> configProviderProps, boolean doLog);
    public  AbstractConfig(ConfigDef definition, Map<?, ?> originals);
    public  AbstractConfig(ConfigDef definition, Map<?, ?> originals, boolean doLog);

}