MintAssets.fromJson constructor
Implementation
factory MintAssets.fromJson(Map<String, dynamic> json) {
  final Map<AssetName, BigInt> assets = {};
  for (final i in (json["assets"] as Map).entries) {
    assets[AssetName.fromHex(i.key)] = BigintUtils.parse(i.value);
  }
  return MintAssets(assets,
      serializationConfig: AssetsSerializationConfig.fromJson(
          json["serialization_config"] ?? {}));
}