def get_screen_name(t = @access_token)
      return unless @screen_name.nil?
      return if t.nil?

      oauth_response = t.get('/1.1/account/verify_credentials.json')
      @screen_name = JSON.parse(oauth_response.body)["screen_name"]
    end
def get_screen_name(t = @access_token)
      return unless @screen_name.nil?
      return if t.nil?

      oauth_response = t.get('/1.1/account/verify_credentials.json')
      @screen_name = JSON.parse(oauth_response.body)["screen_name"]
    end
query twitter for the bots screen name. we do this during the bot registration process