如何在UpdateAPIView django REST中获取模型的实例？

from rest_framework.generics import UpdateAPIView
from .models import YourModel
from .serializers import YourSerializer

class YourUpdateAPIView(UpdateAPIView):
    queryset = YourModel.objects.all()
    serializer_class = YourSerializer

    def get_object(self):
        # 获取URL参数中的模型实例ID
        instance_id = self.kwargs.get('pk')
        # 根据ID获取模型实例
        instance = YourModel.objects.get(id=instance_id)
        return instance