@interface _MFOfflineCacheOperation : NSObject <NSSecureCoding> @property (class, readonly) BOOL supportsSecureCoding; - (void)encodeWithCoder:(id)a0; - (id)initWithCoder:(id)a0; - (BOOL)databaseID:(id *)a0 andMailbox:(id *)a1 forMessageWithRemoteID:(id)a2 connection:(id)a3; - (BOOL)translateToLocalActionWithConnection:(id)a0; @end