@interface _HKSPTimeIntervalProperty : _HKSPNumberBoxedProperty - (void)decodeValueForObject:(id)a0 fromCoder:(id)a1; - (void)encodeValueForObject:(id)a0 fromCoder:(id)a1; - (void)copyValueFromObject:(id)a0 toObject:(id)a1; - (double)timeIntervalValueForObject:(id)a0; @end