call method

Implementation

@override
Object? call(Interpreter interpreter, List<Object?> arguments,
    Map<Symbol, Object?> namedArguments) {
  if (arguments.length < 2) {
    throw "Argument length must be 3.";
  }
  String? filename;
  var filenameParsed = namedArguments[const Symbol('filename')];
  if (filenameParsed != null) {
    filename = filenameParsed as String;
  }
  return MultipartFile(
    arguments.first as String,
    arguments[1] as Stream<List<int>>,
    arguments[2] as int,
    filename: filename,
  );
}