Error in tutorial

[anonymous]

In the tutorial, I have read the following text:
Finally, note a relationship is defined, using models.ForeignKey. That tells Django each Choice is related to a single Poll.
However, there is no "models.ForeignKey" in the code:

from django.db import models

class Poll(models.Model):
    question = models.CharField(maxlength=200)
    pub_date = models.DateTimeField('date published')

class Choice(models.Model):
    poll = models.ForeignKey(Poll)
    choice = models.CharField(maxlength=200)
    votes = models.IntegerField()

[Malcolm Tredinnick]

The poll attribute on the Choice model is a ForeignKey.