How to trigger onSizeChanged event when open new terminal?

#1

When open terminal the character overlaps after 80 characters, how to handle this on new terminal.
can we trigger onsizechanged event via code?

const terminalWidget = await this.terminalService.newTerminal({
      title,
    } as TerminalWidgetOptions);

    await terminalWidget.start();
    this.terminalService.open(terminalWidget);
    terminalWidget.sendText(command);