如何在django中的单个查询中获得所有以前可区分的对象的最新版本？

from django.db import models

class Object(models.Model):
    name = models.CharField(max_length=100)
    timestamp = models.DateTimeField(auto_now_add=True)

from django.db.models import Max

latest_objects = Object.objects.values('name').annotate(latest_timestamp=Max('timestamp')).order_by('name', '-latest_timestamp')

for obj in latest_objects:
    name = obj['name']
    latest_timestamp = obj['latest_timestamp']
    latest_object = Object.objects.filter(name=name, timestamp=latest_timestamp).first()
    # 处理最新版本的对象