this.name = name
      }

    fun value(value: String) =
      apply {
        require(value.trim() == value) { "value is not trimmed" }
        this.value = value
      }

    fun expiresAt(expiresAt: Long) =
      apply {
        var expiresAt = expiresAt
        if (expiresAt <= 0L) expiresAt = Long.MIN_VALUE
        if (expiresAt > MAX_DATE) expiresAt = MAX_DATE