Final set [array] of the unique well-formed IETF BCP 47 language tag(s) to associate with the Contact. The first element will become primary one.
primary
Optional
Indicates whether this association must be default among others of the same type.
Final set [array] of the unique well-formed IETF BCP 47 language tag(s) to associate with the Contact. The first element will become
primaryone.