f8/sdk/dart/package-fidl_fidl/AsyncBinding/close.md

# close method








void close
([int statusCode])





<p>Close the bound channel.</p>
<p>This function does nothing if the object is not bound.</p>



## Implementation

```dart
void close([int? statusCode]) {
  if (isBound) {
    if (statusCode != null) {
      _writeEpitaph(statusCode);
    }
    _reader.close();
    _impl = null;

    state = InterfaceState.closed;
  }
}
```