@GwtIncompatible("Unnecessary")
  private boolean isOutputInJson() {
    return config.jsonStreamMode == JsonStreamMode.OUT
        || config.jsonStreamMode == JsonStreamMode.BOTH;
  }
@ GwtIncompatible ( "Unnecessary" ) private boolean isOutputInJson ( ) { return config . jsonStreamMode == JsonStreamMode . OUT || config . jsonStreamMode == JsonStreamMode . BOTH ; }
Returns whether output should be a JSON stream.