Is it possible to bind a wildcard value to a variable inside a given block?

Question

I want to do something like this in raku, the idea is that while I'm in a given block I want to match a wildcard to a variable to use it inside the condition, is it possible?

given @my-array {
  when @[*element] {
    say *element;
  }
  when @[] {
    say "nothing :(";
  }
}