How to use the timezonefinder.timezonefinder.TimezoneFinder.using_numba function in timezonefinder

print('')
            print('\nTIMES for ', N, type_of_points)
            print('tzwhere:', his_time)
            print('timezonefinder:', my_time)
            try:
                print(round(his_time / my_time, 2), 'times faster')
            except TypeError:
                pass
                # assert his_time > my_time

        print('\n\n')
        if SHAPELY:
            print('shapely: ON (tzwhere)')
        else:
            print('shapely: OFF (tzwhere)')
        if TimezoneFinder.using_numba():
            print('Numba: ON (timezonefinder)')
        else:
            print('Numba: OFF (timezonefinder)')
        print_speed_test('realistic points', self.realistic_points)
        print_speed_test('random points', list_of_random_points(length=N))

def random_point():
    # tzwhere does not work for points with more latitude!
    return random.uniform(-180, 180), random.uniform(-84, 84)


def list_of_random_points(length):
    return [random_point() for i in range(length)]


duration_idle_mem_test = 20
duration_in_use_mem_test = 20

if __name__ == '__main__':

    if TimezoneFinder.using_numba():
        print('Numba: ON (timezonefinder)')
    else:
        print('Numba: OFF (timezonefinder)')

    start_time = datetime.now()
    timezone_finder = TimezoneFinder()
    end_time = datetime.now()
    my_time = end_time - start_time

    print('\nStartup time:')
    print('timezonefinder:', my_time)

    print("Check the memory usage of python in your process list (Task Manager, Activity Manager...)")
    print("time remaining:")
    while duration_idle_mem_test > 0:
        print(duration_idle_mem_test, 's')

def print_tf_class_props(self):
        print("in memory mode:", self.in_memory_mode)
        if TimezoneFinder.using_numba():
            print('Numba: ON (JIT compiled functions in use)')
        else:
            print('Numba: OFF (JIT compiled functions NOT in use)')