在Django中,我如何返回与模型相关的项目总数？

from django.db import models

class MyModel(models.Model):
    name = models.CharField(max_length=100)
    created_at = models.DateTimeField(auto_now_add=True)

from django.shortcuts import render
from .models import MyModel

def my_view(request):
    total_items = MyModel.objects.count()
    context = {'total_items': total_items}
    return render(request, 'my_template.html', context)

<p>项目总数：{{ total_items }}</p>