如何在所有其他Wagtail页面上导入wagtail页面

from django.db import models
from wagtail.snippets.models import register_snippet

@register_snippet
class ImportedPage(models.Model):
    page = models.ForeignKey(
        'wagtailcore.Page',
        null=True,
        blank=True,
        on_delete=models.SET_NULL,
        related_name='+'
    )

    panels = [
        PageChooserPanel('page')
    ]

    def __str__(self):
        return self.page.title if self.page else 'No page selected'

from django.db import models
from wagtail.core.models import Page
from wagtail.admin.edit_handlers import FieldPanel
from .models import ImportedPage

class HomePage(Page):
    imported_page = models.ForeignKey(
        ImportedPage,
        null=True,
        blank=True,
        on_delete=models.SET_NULL,
        related_name='+'
    )

    content_panels = Page.content_panels + [
        FieldPanel('imported_page')
    ]

{% if page.imported_page.page %}
    <h2>{{ page.imported_page.page.title }}</h2>
{% endif %}