RMRK nestTransfer function

nestTransfer.sol

pragma solidity ^0.8.15;

function _nestTransfer(
    address from,
    address to,
    uint256 tokenId,
    uint256 destinationId
) internal virtual {
    (address immediateOwner, , ) = rmrkOwnerOf(tokenId);
    if (immediateOwner != from) revert ERC721TransferFromIncorrectOwner();
    if (to == address(0)) revert ERC721TransferToTheZeroAddress();
    if (to == address(this) && tokenId == destinationId)
        revert RMRKNestingTransferToSelf();

    // Destination contract checks:
    if (!to.isContract()) revert RMRKIsNotContract();
    if (!IERC165(to).supportsInterface(type(IRMRKNesting).interfaceId))
        revert RMRKNestingTransferToNonRMRKNestingImplementer();
    _checkForInheritanceLoop(tokenId, to, destinationId);

    _beforeTokenTransfer(from, to, tokenId);
    _balances[from] -= 1;
    _updateOwnerAndClearApprovals(tokenId, destinationId, to, true);
    _balances[to] += 1;

    // Sending to NFT:
    _sendToNFT(tokenId, destinationId, from, to);
}