}
        }
      }

      ImportResults(sortedRules, sortedExceptionRules, totalRuleBytes, totalExceptionRuleBytes)
    }

  private fun String.toRule(): ByteString? {
    if (trim { it <= ' ' }.isEmpty() || startsWith("//")) return null
    if (contains(WILDCARD_CHAR)) {
      assertWildcardRule(this)
    }
    return encodeUtf8()
  }

  data class ImportResults(