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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 show_in_menus_custom(self, request=None, current_site=None, menu_instance=None, original_menu_tag=''):
 """ Return a boolean indicating whether this page should be included in menus being rendered. """

        if not self.show_in_menus:
            return False
        if self.link_page:
            return self.link_page_is_suitable_for_display()
        return True