use django admins icons for my own fields

Question

What is the best way to use the standard django icons from the admin menu in custom fields for the admin?

I know they are stored in projectname-static/admin/img/icon-alert.svg etc ... but is there something like from django.templatetags.static import static where I can access them?

I know they are implemented in the admin using css:

ul.messagelist li.warning {
background: var(--message-warning-bg) url(../img/icon-alert.svg) 40px 14px no-repeat;
background-size: 14px auto;
}

I imagine something like:

class CustomFieldAdmin(admin.ModelAdmin):
    fields = ["custom",]

    def custom(self, obj):
        return format_html(f"""<img src="{icon}">obj.text""")