如何在Wagtail Draftail编辑器中更改H元素的类

const customStyleMap = {
  'HEADER-one': {
    className: 'custom-h1',
  },
};

export default customStyleMap;

WAGTAILADMIN_RICH_TEXT_EDITORS = {
    'default': {
        'WIDGET': 'wagtail.admin.rich_text.DraftailRichTextArea',
        'OPTIONS': {
            'features': [
                'bold',
                'italic',
                'h3',
                'h4',
                'link',
                'document-link',
                'image',
                'embed',
                'ul',
                'ol',
                'hr',
                'blockquote',
                'superscript',
                'subscript',
                'strikethrough',
                'code',
                'clear',
                'draftail.plugins.blocktype',  # 确保这个插件被包含
            ],
        },
    },
}

from wagtail.admin.edit_handlers import FieldPanel
from wagtail.core.models import Page
from wagtail.core.fields import RichTextField

class MyPage(Page):
    content = RichTextField(features={"blockType": {"options": {"element": "h1", "className": "custom-h1"}}})

    content_panels = Page.content_panels + [
        FieldPanel('content'),
    ]