@Override
  public boolean contains(Object element) {
    if (element instanceof TodoItem) {
      Module module = ModuleUtilCore.findModuleForFile(((TodoItem)element).getFile());
      return super.canRepresent(module);
    }

    if (element instanceof PsiElement) {
      Module module = ModuleUtilCore.findModuleForPsiElement((PsiElement)element);
      return super.canRepresent(module);
    }
    return super.canRepresent(element);
  }
@Override
  public boolean contains(Object element)