public enum HeatPumpHeatingInterpolation {
  public struct Request: Codable, Equatable, Sendable {

    public let elevation: Int?
    public let winterDesignTemperature: Int
    public let heatLoss: Int
    public let climateType: SystemType.ClimateType
    public let capacity: Capacity.HeatPumpHeating

    public init(
      elevation: Int? = nil,
      winterDesignTemperature: Int,
      heatLoss: Int,
      climateType: SystemType.ClimateType,
      capacity: Capacity.HeatPumpHeating
    ) {
      self.elevation = elevation
      self.winterDesignTemperature = winterDesignTemperature
      self.heatLoss = heatLoss
      self.climateType = climateType
      self.capacity = capacity
    }
  }

  public struct Response: Codable, Equatable, Sendable {

    public let altitudeAdjustmentMultiplier: Double?
    public let balancePointTemperature: Int
    public let capacityAtDesign: Int
    public let finalCapacity: Capacity.HeatPumpHeating
    public let supplementalHeatRequired: Int

    public init(
      altitudeAdjustmentMultiplier: Double? = nil,
      balancePointTemperature: Int,
      capacityAtDesign: Int,
      finalCapacity: Capacity.HeatPumpHeating,
      supplementalHeatRequired: Int
    ) {
      self.altitudeAdjustmentMultiplier = altitudeAdjustmentMultiplier
      self.balancePointTemperature = balancePointTemperature
      self.capacityAtDesign = capacityAtDesign
      self.finalCapacity = finalCapacity
      self.supplementalHeatRequired = supplementalHeatRequired
    }
  }
}