Date attributes group
      The date attributes group includes attributes that take date values, and are defined
         on
         metadata elements that work with date information.
      
      
            
            
                  - @expiry
 
                  - The date
                     when the information should be retired or refreshed, entered as YYYY-MM-DD, where
                     YYYY is the
                     year, MM is the month from 01 to 12, and DD is the day from 01-31.
                     
                  
 
                
                  - @golive
 
                  - The
                     publication or general availability (GA) date, entered as YYYY-MM-DD, where YYYY is
                     the year,
                     MM is the month from 01 to 12, and DD is the day from 01-31.