You hold: ♠ AK63 ♥ 4 ♦ K1062 ♣ AK72

Raise partner’s fourth suit forcing bid to three clubs, natural. I can also see a case for bidding four clubs to show this shape, but partner may find it easier to set trumps at a lower level. If partner bids three no-trump next, you can bid four clubs or four no-trump to invite a slam. Note that this hand was not strong enough for a jump rebid of two spades on the second round, which would be game forcing.