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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_entry_model():
 """ Return the actual entry model that is in use. This function reads the :ref:`FLUENT_BLOGS_ENTRY_MODEL` setting to find the model. The model is automatically registered with *django-fluent-comments* and *django-any-urlfield* when it's installed. """

    global _EntryModel

    if _EntryModel is None:
        # This method is likely called the first time when the admin initializes, the sitemaps module is imported, or BaseBlogMixin is used.
        # Either way, it needs to happen after all apps have initialized, to make sure the model can be imported.
        if not appsettings.FLUENT_BLOGS_ENTRY_MODEL:
            _EntryModel = Entry
        else:
            app_label, model_name = appsettings.FLUENT_BLOGS_ENTRY_MODEL.rsplit('.', 1)
            _EntryModel = apps.get_model(app_label, model_name)

            if _EntryModel is None:
                raise ImportError("{app_label}.{model_name} could not be imported.".format(app_label=app_label, model_name=model_name))

        # Auto-register with django-fluent-comments moderation
        if 'fluent_comments' in settings.INSTALLED_APPS and issubclass(_EntryModel, CommentsEntryMixin):
            from fluent_comments.moderation import moderate_model
            moderate_model(
                _EntryModel,
                publication_date_field='publication_date',
                enable_comments_field='enable_comments',
            )

        # Auto-register with django-any-urlfield
        if 'any_urlfield' in settings.INSTALLED_APPS:
            from any_urlfield.models import AnyUrlField
            from any_urlfield.forms.widgets import SimpleRawIdWidget
            AnyUrlField.register_model(_EntryModel, widget=SimpleRawIdWidget(_EntryModel))

    return _EntryModel