        fn receive_cross_chain_callback(ref self: ContractState, cross_chain_msg_id: felt252, from_chain: felt252, to_chain: felt252,
        from_handler: u256, to_handler: ContractAddress, cross_chain_msg_status: u8) -> bool{
            assert(to_handler == get_contract_address(),'error to_handler');

            assert(self.settlement_address.read() == get_caller_address(), 'not settlement');

            assert(self.support_handler.read((from_chain, from_handler)) && 
                    self.support_handler.read((to_chain, contract_address_to_u256(to_handler))), 'not support handler');

            let erc20 = IERC20MintDispatcher{contract_address: self.token_address.read()};
            if self.mode.read() == SettlementMode::MintBurn{
                erc20.burn_from(get_contract_address(), self.created_tx.read(cross_chain_msg_id).amount);
            }
            let created_tx = self.created_tx.read(cross_chain_msg_id);
            ///@audit-issue M cross_chain_msg_status not checked like in the solidity instance, this will always set tx_status as settled and return true and never Failed!
            self.created_tx.write(cross_chain_msg_id, CreatedCrossChainTx{
                tx_id: created_tx.tx_id,
                from_chain: created_tx.from_chain,
                to_chain: created_tx.to_chain,
                from:created_tx.from,
                to:created_tx.to,
                from_token: created_tx.from_token,
                to_token: created_tx.to_token,
                amount: created_tx.amount,
@>              tx_status: CrossChainTxStatus::SETTLED
            });

            return true;
        }
            if self.mode.read() == SettlementMode::MintBurn{
                erc20.burn_from(get_contract_address(), self.created_tx.read(cross_chain_msg_id).amount);
            }
        if (status == CrossChainMsgStatus.Success) {
            if (mode == SettlementMode.MintBurn) {
                _erc20_burn(address(this), create_cross_txs[txid].amount);
            }

            create_cross_txs[txid].status = CrossChainTxStatus.Settled;
        }

        if (status == CrossChainMsgStatus.Failed) {
            create_cross_txs[txid].status = CrossChainTxStatus.Failed;
        }
