lib/chatterbot/profile.rb
def profile_website(w=nil)
      return if require_login == false

      if w.nil?
        client.user.website
      else
        data = {
          url: w
        }
        client.update_profile(data)
        w
      end
    end
def profile_website(w=nil)
      return if require_login == false

      if w.nil?
        client.user.website
      else
        data = {
          url: w
        }
        client.update_profile(data)
        w
      end
    end
get/set the profile URL