anchor method
      
Future<String> 
anchor({ 
    
    
- required Identifier identifier,
- required String data,
- required DigestType algo,
- dynamic hint,
override
    Implementation
Future<String> anchor(
    {required Identifier identifier,
    required String data,
    required DigestType algo,
    dynamic hint}) {
  var arg0 = _platform.api2wire_box_autoadd_identifier(identifier);
  var arg1 = _platform.api2wire_String(data);
  var arg2 = _platform.api2wire_box_autoadd_digest_type(algo);
  return _platform.executeNormal(FlutterRustBridgeTask(
    callFfi: (port_) => _platform.inner.wire_anchor(port_, arg0, arg1, arg2),
    parseSuccessData: _wire2api_String,
    parseErrorData: _wire2api_FrbAnyhowException,
    constMeta: kAnchorConstMeta,
    argValues: [identifier, data, algo],
    hint: hint,
  ));
}