$cont = current_escape_function;
push @events, [ "dd0", @_ ];
push @events, [ "dd1", $aa->(@_), "z" ];
push @events, [ "dd2" ];
"dd3";
$cont = current_escape_function;
push @events, [ "dd0", @_ ];
push @events, [ "dd1", $aa->(@_), "z" ];
push @events, [ "dd2" ];
"dd3";