--- token/ERC721/ERC721.sol	2023-03-07 10:48:47.736822221 +0100
+++ token/ERC721/ERC721.sol	2023-03-09 19:49:39.669338673 +0100
@@ -199,6 +199,11 @@
         return _owners[tokenId];
     }
 
+    // FV
+    function _getApproved(uint256 tokenId) internal view returns (address) {
+        return _tokenApprovals[tokenId];
+    }
+
     /**
      * @dev Returns whether `tokenId` exists.
      *
