load library
Functions
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  hideLoadingDialog() → void 
- will dismiss all dialog
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  showCustomLoadingWidget(Widget widget, {bool? tapDismiss}) → Future< LoadingDismissFuture> 
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  showLoadingDialog({bool? tapDismiss}) → Future< LoadingDismissFuture?> 
- 
  Use LoadingDismissFuture.dismisscan dismiss current dialog