Optional
createIf true, fail if the attribute already exists.
Optional
encodingEncoding for attribute values. If 'buffer' or undefined, the value is returned as a Buffer. Otherwise, the value is returned as a string using the specified encoding.
Optional
noIf true, don't follow symlinks.
Optional
replaceIf true, fail if the attribute does not exist.
Options for setting extended attributes. Extends the base Options with additional flags for create/replace behavior.