Fetch a file or object from an archive.  Throws an error if
requesting a target that was not exported (see
list_archive() for archive contents).
fetch_archive(target_name, path_prefix = NULL, archive_file = "remake.zip")Name of a single file or
Optional path prefix for exported files only
(not for objects).  If given, a file path/to/file will be
exported as path_prefix/path/to/file; this is useful to avoid
overwriting existing data, as this will happen without warning.
Name of the archive file to use, by
default remake.zip.
If target_name refers to an object, then the return
value is the restored object.  If target_name refers to a
file, then the return value is the path to the restored file
(including path_prefix if given).