description

# instantSync method Null safety

void instantSync (

1. String name,
2. {Map? arguments}

)

Emit an instant event.

## Implementation

    static void instantSync(String name, {Map? arguments}) {
      if (!_hasTimeline) return;
      // TODO: When NNBD is complete, delete the following line.
      ArgumentError.checkNotNull(name, 'name');
      if (!_isDartStreamEnabled()) {
        // Stream is disabled.
        return;
      }
      Map? instantArguments;
      if (arguments != null) {
        instantArguments = new Map.from(arguments);
      }
      _reportInstantEvent('Dart', name, _argumentsAsJson(instantArguments));
    }