groupingIdentifier property

String? groupingIdentifier
final

Optional for event tickets and boarding passes; otherwise not allowed. Identifier used to group related passes. If a grouping identifier is specified, passes with the same style, pass type identifier, and grouping identifier are displayed as a group. Otherwise, passes are grouped automatically. Use this to group passes that are tightly related, such as the boarding passes for different connections of the same trip. Available in iOS 7.0.

Implementation

final String? groupingIdentifier;