@Throws(IOException::class)
  @JvmOverloads
  fun edit(
    key: String,
    expectedSequenceNumber: Long = ANY_SEQUENCE_NUMBER,
  ): Editor? {
    initialize()

    checkNotClosed()
    validateKey(key)
    var entry: Entry? = lruEntries[key]
    if (expectedSequenceNumber != ANY_SEQUENCE_NUMBER &&
      (entry == null || entry.sequenceNumber != expectedSequenceNumber)
    ) {