ConstReadonlyComplete: "complete"Fires once when the transfer reaches TransferState.Completed, with the transfer id.
ReadonlyError: "error"Fires when the transfer fails or is cancelled with a reason, carrying a FileTransferError.
ReadonlyProgress: "progress"Fires as bytes move, carrying a TransferProgress snapshot.
ReadonlyStateChanged: "state-changed"Fires on every state change, with the new and previous TransferState.
Events emitted by an individual Transfer.