content property
Holds the widget to display as the content of a toolbar item, and it can be any type of widget.
Example:
List<AssistMessage> _messages = <AssistMessage>[
  AssistMessage.response(
    data: responseText,
    toolbarItems: <AssistMessageToolbarItem>[
      const AssistMessageToolbarItem(
        content: Icon(Icons.thumb_up_outlined),
      ),
    ],
  )
];
Implementation
final Widget content;