code: function(eventEmitter, access_token, group_id, picture_url) {
  
    API.Bots.create(
      access_token,
      "TestBot_PictureText",
      group_id,
      {avatar_url:"https://secure.gravatar.com/avatar/0ea0a27ab0e9a49b753cd2e3c27e585d?s=420&d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-user-420.png"},
      function(err,ret) {
        if (err) {
          eventEmitter.emit('error', err);
        } else {
          eventEmitter.emit('success', ret);
        }
      });
  
    eventEmitter.emit('start');
  
    return eventEmitter;
  
  }
docs: **********************************************************************
  Helper function for creating a bot
  *********************************************************************