v3 property Null safety
Implementation
XdrTransactionMetaV3? get v3 => this._v3;
Implementation
set v3(XdrTransactionMetaV3? value) => this._v3 = value;
XdrTransactionMetaV3? get v3 => this._v3;
set v3(XdrTransactionMetaV3? value) => this._v3 = value;