String serviceUri

Source 

@DomName('SpeechRecognition.serviceURI')
@DocsEditable()
@Experimental() // untriaged
String get serviceUri =>
    _blink.BlinkSpeechRecognition.instance.serviceURI_Getter_(this);
void serviceUri=(String value)

Source 

@DomName('SpeechRecognition.serviceURI')
@DocsEditable()
@Experimental() // untriaged
set serviceUri(String value) =>
    _blink.BlinkSpeechRecognition.instance.serviceURI_Setter_(this, value);