get
fun getFlexDataTextBytes(input: Iterator<Ump>, fallback: UmpBinaryRetrieverFallback = UmpBinaryRetrieverFallback.Break): List<Byte>
fun getFlexDataTextBytes(outputter: (List<Byte>) -> Unit, input: Iterator<Ump>, fallback: UmpBinaryRetrieverFallback = UmpBinaryRetrieverFallback.Break)