Python: What is a Django model and how to define one?

1from django.db import models
2from django.contrib.auth.models import User
3
4class Article(models.Model):
5    title = models.CharField(max_length=200)
6    content = models.TextField()
7    author = models.ForeignKey(User, on_delete=models.CASCADE)
8    created_at = models.DateTimeField(auto_now_add=True)
9    updated_at = models.DateTimeField(auto_now=True)
10    published = models.BooleanField(default=False)
11    views_count = models.PositiveIntegerField(default=0)
12
13    class Meta:
14        ordering = ["-created_at"]
15        verbose_name = "Article"
16        verbose_name_plural = "Articles"
17
18    def __str__(self):
19        return self.title
20
21    def get_absolute_url(self):
22        return f"/articles/{self.id}/"