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'use strict';
module.exports = function setDocumentTimestamps(doc, timestampOption, currentTime, createdAt, updatedAt) {  const skipUpdatedAt = timestampOption != null && timestampOption.updatedAt === false;  const skipCreatedAt = timestampOption != null && timestampOption.createdAt === false;
  const defaultTimestamp = currentTime != null ?    currentTime() :    doc.ownerDocument().constructor.base.now();
  if (!skipCreatedAt &&      (doc.isNew || doc.$isSubdocument) &&      createdAt &&      !doc.$__getValue(createdAt) &&      doc.$__isSelected(createdAt)) {    doc.$set(createdAt, defaultTimestamp, undefined, { overwriteImmutable: true });  }
  if (!skipUpdatedAt && updatedAt && (doc.isNew || doc.$isModified())) {    let ts = defaultTimestamp;    if (doc.isNew && createdAt != null) {      ts = doc.$__getValue(createdAt);    }    doc.$set(updatedAt, ts);  }};