Ledger.fromJson constructor Null safety
Implementation
factory Ledger.fromJson(Map<String, dynamic> json) => Ledger(
uco: Uco.fromJson(json['uco']),
nft: Nft.fromJson(json['nft']),
);
factory Ledger.fromJson(Map<String, dynamic> json) => Ledger(
uco: Uco.fromJson(json['uco']),
nft: Nft.fromJson(json['nft']),
);