anchor.diff:           find_zone/1,
            find_zone/2,
            get_zone/1,
  -         get_zone_with_records/1,
            get_authority/1,
            get_delegations/1,
            get_zone_records/1,
  
positive.code:          in_zone/1,
           record_name_in_zone/2,
           zone_names_and_versions/0,
  	 get_rrset_sync_counter/3,
  	 update_zone_records_and_digest/3
          ]).
  
  % Write APIs
  
negative.code:          put_zone/1,
           put_zone/2,
           delete_zone/1,
           update_zone_records_and_digest/3,
  	 put_zone_rrset/4,
  	 delete_zone_rrset/5
          ]).
  