request method
Implementation
Future<void> request(T? key) async {
key ??= _key;
_key = key;
if (key == null) {
_data.clear();
return;
}
try {
var x = await _host.request('/${name}_request', data: {
'keys': [key]
});
_data.clear();
_data.addAll(x.data);
} catch (e) {}
}