PurchaseSubscriptionModelMirrorRefPath typedef
PurchaseSubscriptionModelMirrorRefPath = _$PurchaseSubscriptionModelMirrorRefPath
It can be defined as an empty ModelRef
PurchaseSubscriptionModelMirrorRefPath("xxx") // Define as a path.
Implementation
typedef PurchaseSubscriptionModelMirrorRefPath
= _$PurchaseSubscriptionModelMirrorRefPath;