Type Alias RoomReceipts 

type RoomReceipts = SmallVec<[(OwnedRoomId, SmallVec<[ReceiptMap; 1]>); 1]>;

Per-room ranked receipts gathered for one federation EDU window. The common case is a single room, so inline-1 avoids a heap touch.

Aliased Type

struct RoomReceipts { /* private fields */ }