createTemp method
Creates a temporary directory in this directory.
Additional random characters are appended to prefix
to produce a unique directory name.
If prefix
is missing or null, the empty string is used as prefix
.
Returns a Future<Directory>
that completes with the newly
created temporary directory.
Implementation
@override
Future<Directory> createTemp([String? prefix]) {
return Future.value(createTempSync(prefix));
}