[Python] 'ReverseManyToOneDescriptor' object has no attribute 'all'

I'm new to Django and I'm trying to access products that belong to category through Category model. I'm using a foreign key in Product for categories. These are my models:

class Category(models.Model):
name = models.CharField(max_length=140)
slug = models.SlugField(blank=True)

def __str__(self):
return self.name

def get_absolute_url(self):
return reverse("shop:category", kwargs=
{"category_slug": self.slug})

class Product(models.Model):
category = models.ForeignKey(Category,
on_delete=models.CASCADE)
brand = models.ForeignKey(Brand,
on_delete=models.CASCADE)
title = models.CharField(max_length=200)
slug = models.SlugField()
description = models.TextField()
image = models.ImageField(upload_to=image_name)
price = models.PositiveIntegerField()
avaliable = models.BooleanField(default=True)

def get_absolute_url(self):
return reverse("shoproduct", kwargs={
"product_slug": self.slug,
"product_ctgr_slug":
self.category.slug,})


My Views:

class CategoryDetailView(DetailView):
model = Category
category_products = Category.product_set.all()
slug_url_kwarg = "category_slug"

def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['categories'] = self.categories
context['category_products'] = self.category_products
return context


But Django gives me an AttributeError: 'ReverseManyToOneDescriptor' object has no attribute 'all'.
What am I doing wrong?

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