AdditionalMetadata.fromJson constructor
Implementation
factory AdditionalMetadata.fromJson(Map<String, dynamic> json) {
final List<String> values = (json["values"] as List).cast();
if (values.length != 2) {
throw const MessageException("invalid AdditionalMetadata data length");
}
return AdditionalMetadata(key: values[0], value: values[1]);
}