A key that indicates the predominant stroke style for a lap of swimming.
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let HKMetadataKeySwimmingStrokeStyle: String
Set this key on workout lap events. Set its value to an NSNumber object that contains a valid value from the HKSwimmingStrokeStyle enumeration.
The style of stroke while swimming.
let HKMetadataKeySwimmingLocationType: String
A key that indicates the location for a swimming workout.
let HKMetadataKeyLapLength: String
A key that indicates the length of a lap during a workout.