toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
  final $buf = StringBuffer()..writeln('SourceTypeAcssDebit(');
  if (bankAddressCity != null) {
    $buf
      ..writeln()
      ..write('  bank_address_city: ')
      ..write(bankAddressCity)
      ..write(',');
  }
  if (bankAddressLine1 != null) {
    $buf
      ..writeln()
      ..write('  bank_address_line_1: ')
      ..write(bankAddressLine1)
      ..write(',');
  }
  if (bankAddressLine2 != null) {
    $buf
      ..writeln()
      ..write('  bank_address_line_2: ')
      ..write(bankAddressLine2)
      ..write(',');
  }
  if (bankAddressPostalCode != null) {
    $buf
      ..writeln()
      ..write('  bank_address_postal_code: ')
      ..write(bankAddressPostalCode)
      ..write(',');
  }
  if (bankName != null) {
    $buf
      ..writeln()
      ..write('  bank_name: ')
      ..write(bankName)
      ..write(',');
  }
  if (category != null) {
    $buf
      ..writeln()
      ..write('  category: ')
      ..write(category)
      ..write(',');
  }
  if (country != null) {
    $buf
      ..writeln()
      ..write('  country: ')
      ..write(country)
      ..write(',');
  }
  if (fingerprint != null) {
    $buf
      ..writeln()
      ..write('  fingerprint: ')
      ..write(fingerprint)
      ..write(',');
  }
  if (last4 != null) {
    $buf
      ..writeln()
      ..write('  last4: ')
      ..write(last4)
      ..write(',');
  }
  if (routingNumber != null) {
    $buf
      ..writeln()
      ..write('  routing_number: ')
      ..write(routingNumber)
      ..write(',');
  }
  $buf.write(')');
  return $buf.toString();
}