def METHOD_NAME(self):
    """
    Get the default message container. Used unless
    the ``messages_container`` kwarg for :meth:`.__init__` overrides it.
    Defaults to a :class:`django_cradmin.uicontainer.messagecontainer.MessagesContainer`.
    Must implement :class:`django_cradmin.uicontainer.messagecontainer.AbstractMessageContainerMixin`.
    """
    return messagescontainer.BoxMessagesContainer(
        test_css_class_suffixes_list=['form-globalmessages']
    )