title: Discord.py - passing an argument role functions
body: <p>I wanted to create a command, like !iknow @user . A normal verification bot I think. Here's my code, I only pasted the important parts:</p>
  
  <pre><code>import discord
  from discord.ext import commands
  
  @client.command(pass_context=True)
  async def iknow(ctx, arg):
      await ctx.send(arg)
  
      unknownrole = discord.utils.get(ctx.guild.roles, name = "Unknown")
      await client.remove_roles(arg, unknownrole)
  
      knownrole =   discord.utils.get(ctx.guild.roles, name = "Verified")
      await client.add_roles(arg, knownrole)
  </code></pre>
  
  <p>(The <em>Unknown</em> role is automatically passed when a user joins the server.)</p>
  
  <p>The problem is: I get an error on line 6 (and I think I will get on line 9, too).</p>
  
  <blockquote>
    <p>File
    "/home/archit/.local/lib/python3.7/site-packages/discord/ext/commands/core.py",
    line 83, in wrapped<br>
        ret = await coro(*args, **kwargs)   File "mainbot.py", line 6, in iknow
        await client.remove_roles(arg, unknownrole) AttributeError: 'Bot' object has no attribute 'remove_roles'</p>
  </blockquote>
  
  <p>I just started learning python, so please don't bully me!</p>