title: How to use custom token model in Django Rest Framework
body: <p>I'd like to use Django Rest Framework auth but I want to have more than one token for one user. In order to do that I need to implement my own Token model, I found this in Token authentication class:</p>
  
  <pre><code>class TokenAuthentication(BaseAuthentication):
      """
      Simple token based authentication.
      ...
      """
  
      model = Token
      """
      A custom token model may be used, but must have the following properties.
  
      * key -- The string identifying the token
      * user -- The user to which the token belongs
      """
  </code></pre>
  
  <p>But I don't have an idea how I can specify this model. Should I subclass <code>TokenAuthentication</code>?</p>