Returns Some(label) if exists matching key in dictionary with id = dictId Returns None if registry not support fetching of label for given dictId.
Returns Some(label) if exists matching key in dictionary with id = dictId Returns None if registry not support fetching of label for given dictId.
Returns key if exists matching label in dictionary with id = dictId
Returns key if exists matching label in dictionary with id = dictId
(Since version ) see corresponding Javadoc for more information.