如何使用django rest框架保存多对多字段对象

from django.db import models

class User(models.Model):
    name = models.CharField(max_length=100)
    groups = models.ManyToManyField('Group')

class Group(models.Model):
    name = models.CharField(max_length=100)

from rest_framework import serializers

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ['id', 'name', 'groups']

from rest_framework import viewsets

class UserViewSet(viewsets.ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer

from django.urls import include, path
from rest_framework.routers import DefaultRouter

router = DefaultRouter()
router.register(r'users', UserViewSet)

urlpatterns = [
    path('', include(router.urls)),
]