Results of `.parse()` as an async Seq?

gistfile1.txt

grammar G {
  token TOP { <a-line>* }
  token a-line { (\V*) \n }
}

class A {
  method TOP($/) {
    note "!TOP ", $/<a-line>».made.perl, $/;
  }
  method a-line($/) {
    note "!A-LINE";
    take ~$0;
    make $/.pos;
  }
}

for gather G.parse($*IN.slurp, :actions(A.new)) {
  note "(($_))";
}