Mock lodash debounce with Jest in Typescript

my.test.ts

import * as _ from 'lodash';

// Mock out lodash debounce implementation, so it calls the debounced method immediately
jest.spyOn(_, 'debounce').mockImplementation(
    jest.fn((fn: any) => {
        // fn.cancel = jest.fn();
        // fn.flush = jest.fn();
        return fn as (((...args: any[]) => any) & _.Cancelable);
    }));