如何在Django多对多关系中删除中间模型的实例？

# models.py
class Author(models.Model):
    name = models.CharField(max_length=100)

class Book(models.Model):
    title = models.CharField(max_length=100)
    authors = models.ManyToManyField(Author, through='BookAuthor')

class BookAuthor(models.Model):
    book = models.ForeignKey(Book, on_delete=models.CASCADE)
    author = models.ForeignKey(Author, on_delete=models.CASCADE)
    additional_info = models.CharField(max_length=100)

# views.py
from django.http import HttpResponse
from .models import BookAuthor

def delete_book_author(request, book_author_id):
    book_author = BookAuthor.objects.get(id=book_author_id)
    book_author.delete()
    return HttpResponse("Book author deleted.")