Referencing the User model missing parenthesis

[Jeff Schulthies]

​https://docs.djangoproject.com/en/dev/topics/auth/customizing/#referencing-the-user-model\

Referencing the User model. The example is missing a parenthesis.

from django.conf import settings
from django.db import models

class Article(models.Model):

author = models.ForeignKey

settings.AUTH_USER_MODEL,
on_delete=models.CASCADE,

)

Corrected:
from django.conf import settings
from django.db import models

class Article(models.Model):

author = models.ForeignKey(

settings.AUTH_USER_MODEL,
on_delete=models.CASCADE,

)