in include/SPTPersistentCache/SPTPersistentCacheHeader.h [31:38]
typedef NS_ENUM(NSInteger, SPTPersistentCacheRecordHeaderFlags) {
// 0x0 means regular file
/*
Indicates that record might not be completed last time it was written.
This is not an error state but more Application logic.
*/
SPTPersistentCacheRecordHeaderFlagsStreamIncomplete = 0x1,
};