FunctionContainer constructor
      
      FunctionContainer({ 
    
    
- Key? key,
- List<int> ? defaultChecks,
- int defaultCheck = 0,
- required Widget child,
- int mutualExclusionIndex = -1,
- dynamic singleCheckedChange(- int checkedId
 
- bool allowMultipleChoice = false,
- dynamic multipleCheckedChange(- List checkeds
 
- bool enableFirstDefaultCheck = false,
- bool enable = true,
- dynamic enableCallBack()?,
Implementation
FunctionContainer({
  Key? key,
  this.defaultChecks,
  this.defaultCheck=0,
  required this.child,
  this.mutualExclusionIndex =-1,
  this.singleCheckedChange,
  this.allowMultipleChoice=false,
  this.multipleCheckedChange,
  this.enableFirstDefaultCheck = false,
  this.enable = true,
  this.enableCallBack,
}) : super(key: key);