originSignaturePayload method Null safety

Uint8List originSignaturePayload()

Implementation

Uint8List originSignaturePayload() {
  var payloadForPreviousSignature = this.previousSignaturePayload();
  return concatUint8List([
    payloadForPreviousSignature,
    this.previousPublicKey!,
    Uint8List.fromList([this.previousSignature!.length]),
    this.previousSignature!,
  ]);
}