UInt64 GetFinalizedFrameId() const;
GetFinalizedFrameId returns the largest FrameId that was finalized. Once a frame is finalized, its shared resources are known to be released. When you release a TreeShape which has shape data references, these references will persist until (GetFinalizedFrameId() >= recordedFrameId), where recordedFrameId is the frame where TreeShape was destroyed.
A value containing the largest frame id.