setMerchantTaxID method
merchant tax id
length of value
is 1 up to 20.
Implementation
setMerchantTaxID(String value) {
if (value.length > 20) {
throw MaxValueLengthErr(title: "MerchantTaxID", length: "20");
}
final merchantTaxId = setTLV(value, AdditionalID.merchantTaxId);
this.value = this.value.copyWith(merchantTaxId: merchantTaxId);
}