@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY)
@JsonSubTypes(
    JsonSubTypes.Type(value = PowerUpMessage::class, name = "POWER_UP"),
    JsonSubTypes.Type(value = PowerDownMessage::class, name = "POWER_DOWN"),
    JsonSubTypes.Type(value = Phase1PushInterval2Message::class, name = "PHASE_1"),
    JsonSubTypes.Type(value = Phase3PushInterval2Message::class, name = "PHASE_3"),
)
sealed class SmartMeterMessage(open val DeviceId: String, open val Datetime: Instant)

sealed class PowerMessage(override val DeviceId: String, open val DateTime: Instant) : SmartMeterMessage(DeviceId, DateTime)

data class PowerDownMessage(override val DeviceId: String, override val DateTime: Instant) :
PowerMessage(DeviceId, DateTime)