title: Returning a message in a channel issue
body: <p>Hi I'm trying to return a message when the user uses the command <code>!add</code> in channels other than the channels in the check. This is how I'm checking for the channels the command should be used in:</p>
  
  <p><code>@commands.check(lambda ctx: ctx.channel.id in [555913791615926302, 567769278351409174])</code></p>
  
  <p>Here is how I'm trying to do this and having issues with:</p>
  
  <pre><code>if not ctx.channel.id:
          await ctx.send("You can only use this command in botroom.")
          return
  </code></pre>
  
  <p>and this is how I'd be using in the code:</p>
  
  <pre><code>@commands.command(pass_context=True)
  @commands.check(lambda ctx: ctx.channel.id in [555913791615926302, 567769278351409174])
  async def add(self, ctx, *, rolename):
      author = ctx.message.author
      role_dict = {
          "members":557212810468392970,
          "ps4":568761643916328960,
          "lol":559792606364565505,
          "pc":568725587322208287,
          "nintendo switch":558649595102625795,
          "ze/zir":569170061592494083}
      if not ctx.channel.id:
          await ctx.send("You can only use this command in botroom.")
          return
      role_id = role_dict.get(rolename.lower())
      if not role_id:
          message = 'I cannot find the role **{}**.'
          embed = discord.Embed(description=message.format(rolename))
          await ctx.send(embed=embed)
          return
      role = discord.utils.get(ctx.message.guild.roles, id = role_id)
      if role in author.roles:
          message = 'It looks like you already have the role **{}**.'
          embed = discord.Embed(description=message.format(role.name))
          await ctx.send(embed=embed)
      else:
          await author.add_roles(role)
          message = '{} added the role **{}**.'.format(author.display_name, role.name)
          embed = discord.Embed(description=message.format(author.display_name, role.name), colour=0x56e011)
          await ctx.send(embed=embed)
  </code></pre>