Payload

The value of the EnergyEvseTrait/Attributes/sessionId attribute prior to the energy transfer stopping.

The value of the state attribute prior to the energy transfer stopping.

The reason for stopping the energy transfer.

The amount of energy transferred between the electric vehicle and the EVSE since the previous EnergyTransferStarted event. This is a signed value in milliwatt hours. A positive value indicates the amount of energy transferred to the vehicle, and a negative value indicates energy transferred from the vehicle.

A textual representation of this instance, suitable for debugging.

Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the String(reflecting:) initializer. This initializer works with any type, and uses the custom debugDescription property for types that conform to CustomDebugStringConvertible:

struct Point: CustomDebugStringConvertible {
    let x: Int, y: Int

    var debugDescription: String {
        return "(\(x), \(y))"
    }
}

let p = Point(x: 21, y: 30)
let s = String(reflecting: p)
print(s)
// Prints "(21, 30)"

The conversion of p to a string in the assignment to s uses the Point type’s debugDescription property.