姜戈。Rest框架。如何在XML中添加对象ID？

from django.db import models

class MyModel(models.Model):
    id = models.AutoField(primary_key=True)
    # 其他字段...

from rest_framework import serializers
from .models import MyModel

class MyModelSerializer(serializers.ModelSerializer):
    class Meta:
        model = MyModel
        fields = ('id', 'field1', 'field2', ...)  # 指定要序列化的字段

from rest_framework.decorators import api_view
from rest_framework.response import Response
from .serializers import MyModelSerializer

@api_view(['POST'])
def my_view(request):
    serializer = MyModelSerializer(data=request.data)
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data)
    return Response(serializer.errors, status=400)

<?xml version="1.0" encoding="utf-8"?>
<root>
    <id>1</id>  <!-- 添加对象ID -->
    <field1>value1</field1>
    <field2>value2</field2>
    <!-- 其他字段 -->
</root>