import Foundation struct InsulinSensitivities: JSON { let units: GlucoseUnits let userPrefferedUnits: GlucoseUnits let sensitivities: [InsulinSensitivityEntry] } extension InsulinSensitivities { private enum CodingKeys: String, CodingKey { case units case userPrefferedUnits = "user_preferred_units" case sensitivities } } struct InsulinSensitivityEntry: JSON { let sensitivity: Decimal let offset: Int let start: String }