my $fh = open("test", :w);
spurt $fh, "stuff\n";

##</code><code>##

my $wfh = open("in.txt", :w);
spurt $wfh, "a\n";
$wfh.close;

##</code><code>##

Type check failed in binding $path; expected Cool but got IO::Handle (IO::Handle.new(:path(...)
  in block <unit> at nl.pl6 line 2