title: Get owner ids of all servers bot is in
body: <p>I am trying to make a command for my discord bot that dms all the server owners.
  I am able to get the owner id of the server that the message is sent in with:</p>
  <pre><code>message.guild.ownerID
  </code></pre>
  <p>I need some way to get the owner ids for every server the bot is active in</p>