title: Python get all members list from a specific role
body: <p>How to get a members list from a specific role with <code>!getuser</code> command in discord channel.</p>
  
  <pre><code>@bot.command(pass_context=True)  
  async def getuser(ctx):
  </code></pre>
  
  <p>bot replys with their ID</p>
  
  <pre><code> 1. @user1#123
   2. @user2#123
  </code></pre>