@interface BRCSyncOperationBackoffRatio : NSObject <NSSecureCoding> { unsigned long long _totalSyncOperations; unsigned long long _failedSyncOperations; } @property (class, readonly) BOOL supportsSecureCoding; - (void)clear; - (id)init; - (void)encodeWithCoder:(id)a0; - (id)initWithCoder:(id)a0; - (float)backoffRatio; - (void)newSyncOperationWithError:(id)a0; @end