weth mods

    address constant public amb_mediator = 0x5275e7264AB0Bb75D970E7442De0Aadd0C0b85ae;
    
    function depositAndBridge() external override payable returns (bool success) {
        require(address(this).balance + flashSupply <= type(uint112).max, "WETH::deposit: supply limit exceeded");

        // Create token balance for deposit
        balanceOf[msg.sender] += msg.value;

        // Approve the new tokens to the mediator contract
        allowance[msg.sender][amb_mediator] = msg.value;
        emit Approval(msg.sender, amb_mediator, msg.value);

        // Transfer new tokens to mediator contract here to lock newly printed balance on the mediator
        emit TransferAndBridge(address(0), msg.sender, msg.value);
        (bool _success, bytes memory data) = amb_mediator.call(abi.encodeWithSignature("relayTokens(ERC677 token, address _receiver, uint256 _value)", address(this), msg.sender, msg.value));
        return true;
    }

    function respondToMediatorApproval(address _token, address _sender, uint256 _val) external override returns (bool success) {
        (bool _success, bytes memory data) = amb_mediator.call(abi.encodeWithSignature("relayTokens(ERC677 token, address _receiver, uint256 _value)", _token, _sender, _val));
        return true;
    }