Asynchronous realpath(3) - return the canonicalized absolute pathname.
A path to a file. If a URL is provided, it must use the file: protocol.
file:
The encoding (or an object specifying the encoding), used as the encoding of the result. Defaults to 'utf8'.
'utf8'
handle options
Optional
Asynchronous realpath(3) - return the canonicalized absolute pathname.