def ttl_for_access_token=(seconds)
      raise_if_authentication_failed!

      key = @key_for_access_token
      value = @value_for_access_token
      ApiWarden.redis { |conn| conn.set(key, value, ex: seconds) }
    end
def ttl_for_access_token=(seconds)
      raise_if_authentication_failed!

      key = @key_for_access_token
      value = @value_for_access_token
      ApiWarden.redis { |conn| conn.set(key, value, ex: seconds) }
    end
Set the ttl for access token.