How to use the web3-core-helpers.formatters.outputBigNumberFormatter function in web3-core-helpers

inputFormatter: [formatters.inputAddressFormatter, null]
    });

    const generateOneTimeAddress = new Method({
        name: 'generateOneTimeAddress',
        call: 'wan_generateOneTimeAddress',
        params: 1,
        inputFormatter: [null]
    });

    const getOTABalance = new Method({
        name: 'getOTABalance',
        call: 'wan_getOTABalance',
        params: 2,
        inputFormatter: [null, formatters.inputDefaultBlockNumberFormatter],
        outputFormatter: formatters.outputBigNumberFormatter
    });

    const getOTAMixSet = new Method({
        name: 'getOTAMixSet',
        call: 'wan_getOTAMixSet',
        params: 2
    });

    const getSupportStampOTABalances = new Method({
        name: 'getSupportStampOTABalances',
        call: 'wan_getSupportStampOTABalances',
        params: 0,
    });

    const getSupportWanCoinOTABalances = new Method({
        name: 'getSupportWanCoinOTABalances',