TypeError : not a function Hardhat-Fund-me Unit Testing

[bMuhammad506]

This is the test that is giving me error which is TypeError: fundMe.addressesFunding is not a function
at Context. (test/unit/FundMe.test.js:34:43)

`it("Updates the amount funded data structure", async () => {
            await fundMe.fund({ value: sendValue })
            const response = await fundMe.addressesFunding(deployer)
            assert.equal(response.toString(), sendValue.toString())
        })`

and this is my FundMe.sol which i think should help;

//SPDX-License-Identifier:MIT
//solhint-disable-next-line
pragma solidity ^0.8.8;

import "./PriceConvertor.sol";

error FundMe__notOwner();

/** @title Crowd funding Contract
    @author Bilal Rasool
    @notice This contract is a demo for funding
    @dev This implements price feeds as our library
 */
contract FundMe {
    using PriceConvertor for uint256;
    uint256 private constant minUSD = 1 * 10**18;
    address public immutable i_owner;
    address[] public funders;
    mapping(address => uint256) private addressesFunding;

    AggregatorV3Interface public priceFeed;

    constructor(address priceFeedAddress) {
        i_owner = msg.sender;
        priceFeed = AggregatorV3Interface(priceFeedAddress);
    }

    function fund() public payable {
        require(
            msg.value.getConversionRate(priceFeed) >= minUSD,
            "Fund More YOU BOZO!!!"
        );
        funders.push(msg.sender);
        addressesFunding[msg.sender] += msg.value;
    }

    function getVersion(address priceFeedAddress)
        public
        view
        returns (uint256)
    {
        return AggregatorV3Interface(priceFeedAddress).version();
    }

    modifier onlyOwnwer() {
        if (msg.sender != i_owner) {
            revert FundMe__notOwner();
        }
        _;
    }

    function withdraw() public payable onlyOwnwer {
        for (uint256 index = 0; index < funders.length; index++) {
            address funder = funders[index];
            addressesFunding[funder] = 0;
        }
        funders = new address[](0);
        (bool callState, ) = payable(msg.sender).call{
            value: address(this).balance
        }("");
        require(callState, "Call Failed");
    }
}

I have tried changing my parenthesis into square brackets which i thought was the error because as i was accessing the mapping.
const response = await fundMe.addressesFunding[deployer]
but this gave me the error ; TypeError: Cannot read properties of undefined (reading '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266')

[bMuhammad506]

OK i got it in my FundMe.sol my mapping was declared private