contentView property
        
        Widget? Function(BaseMessage, BuildContext, BubbleAlignment alignment, {AdditionalConfigurations? additionalConfigurations})?
        contentView
        
      
getter/setter pair
      contentView widget to be shown in the center of the bubble
Implementation
Widget? Function(BaseMessage, BuildContext, BubbleAlignment alignment,
    {AdditionalConfigurations? additionalConfigurations})? contentView;