public static Tags of(String key, String value) {
        return new Tags(new Tag[]{Tag.of(key, value)});
    }
public static Tags of ( String key , String value ) { return new Tags ( new Tag [ ] { Tag . of ( key , value ) } ) ; }
Return a new {@code Tags} instance containing tags constructed from the specified key/value pair.

@param key   the tag key to add
@param value the tag value to add
@return a new {@code Tags} instance