description

# boundaryEvent constant

EventStreamProvider<SpeechSynthesisEvent> const boundaryEvent

Static factory designed to expose `boundary` events to event handlers that are not necessarily instances of SpeechSynthesisUtterance.

See EventStreamProvider for usage information.

## Implementation

    static const EventStreamProvider<SpeechSynthesisEvent> boundaryEvent =
        const EventStreamProvider<SpeechSynthesisEvent>('boundary');