Simple object used to create cluster annotation view.
NOTE This is an abstract type. Any object meeting this description can be used where this type is used.
Modules.Map.Annotation instance, which you want to show as clustered annotation. There is no need to provide latitude and longitude as clustered annotation decides its location itself.
Array of Modules.Map.Annotation, which is recieved in event 'clusteringstarted' as memberAnnotations.
Array of Modules.Map.Annotation, which is recieved in event 'clusteringstarted' as memberAnnotations.