def short_token
      return "" if access_token.nil? || access_token.empty?
      access_token[0..3] + "..." +
        access_token[(access_token.length - 4)..(access_token.length - 1)]
    end
def short_token
      return "" if access_token.nil? || access_token.empty?
      access_token[0..3] + "..." +
        access_token[(access_token.length - 4)..(access_token.length - 1)]
    end
:nodoc: