title: django mysql db connection protocol
body: <p>How can I specify connection protocol in db OPTIONS? If I use:</p>
  
  <pre><code>'ENGINE': 'django.db.backends.mysql',
   ...
  'OPTIONS': {
          'protocol': 'TPC',
      }, 
  </code></pre>
  
  <p>error is <code>'protocol' is an invalid keyword argument for this function</code></p>
  
  <p>I'm trying to set OPTIONS as on <a href="https://docs.djangoproject.com/en/1.10/ref/settings/#std:setting-OPTIONS" rel="nofollow noreferrer">Django docs</a> and here is <a href="https://dev.mysql.com/doc/refman/5.7/en/connecting.html#option_general_protocol" rel="nofollow noreferrer">MySQL reference</a> It is because I want to establish connection to remote db with ssh tunnel.</p>