@Override
        public String toString() {
            return name().toLowerCase(Locale.ROOT);
        }
Parse a {@link TransactionBoundary} from the given string.
@param property the string to parse; should not be null
@return the {@link TransactionBoundary} whose name matches the given string
@throws IllegalArgumentException if there is no transaction boundary type with the given name
connect/api/src/main/java/org/apache/kafka/connect/source/SourceTask.java