How to use the @zowe/imperative.ImperativeConfig.instance function in @zowe/imperative

const doc: ITaskFunction = async () => {
    process.env.FORCE_COLOR = "0";

    // Get all command definitions
    const myConfig = ImperativeConfig.instance;
    // myConfig.callerLocation = __dirname;
    myConfig.loadedConfig = require("../src/imperative");

    myConfig.loadedConfig.commandModuleGlobs = ["src/cli/*/*.definition!(.d).*s"];


    // Need to set this for the internal caller location so that the commandModuleGlobs finds the commands
    process.mainModule.filename = __dirname + "/../package.json";

    await Imperative.init(myConfig.loadedConfig);
    const loadedDefinitions = Imperative.fullCommandTree;
    clearRequire.all(); // in case the code has changed, reload any code

    let totalCommands = 0;
    let markdownContent = "# Zowe CLI cics-deploy plugin command reference\n\n";