HKPredicateKeyPathWorkoutDuration The key path for accessing the workout’s duration. Declarationlet HKPredicateKeyPathWorkoutDuration: String See AlsoSpecifying predicate key pathsHKPredicateKeyPathWorkoutTypeHKPredicateKeyPathWorkoutTotalDistanceHKPredicateKeyPathWorkoutTotalEnergyBurnedHKPredicateKeyPathWorkoutAverageQuantityHKPredicateKeyPathWorkoutMaximumQuantityHKPredicateKeyPathWorkoutMinimumQuantityHKPredicateKeyPathWorkoutSumQuantity