getXdrFootprint method Null safety

XdrLedgerFootprint getXdrFootprint()

Implementation

XdrLedgerFootprint getXdrFootprint() {
  XdrLedgerFootprint xdrFootprint = this.footprint != null
      ? this.footprint!
      : XdrLedgerFootprint(
          List<XdrLedgerKey>.empty(), List<XdrLedgerKey>.empty());
  return xdrFootprint;
}