How to use the feeluown.consts.CACHE_DIR function in feeluown

def _get_path(self, fname):
        return os.path.join(CACHE_DIR, fname)

def get(self, img_name):
        hname = self._hash(img_name)
        for fname in os.listdir(CACHE_DIR):
            if fname.startswith(hname):
                logger.debug('get img cache for %s' % img_name)
                return self._get_path(fname)
        return None

def ensure_dirs():
    for d in (HOME_DIR, DATA_DIR,
              USER_THEMES_DIR, USER_PLUGINS_DIR,
              CACHE_DIR, SONG_DIR, COLLECTIONS_DIR):
        if not os.path.exists(d):
            os.mkdir(d)

import argparse
import asyncio
import os
import textwrap
import sys
from contextlib import contextmanager
from socket import socket, AF_INET, SOCK_STREAM

from fuocore.cmds import exec_cmd, Cmd
from fuocore.cmds.helpers import show_song
from fuocore.protocol import Parser
from feeluown.consts import CACHE_DIR


OUTPUT_CACHE_FILEPATH = os.path.join(CACHE_DIR, 'cli.out')


def print_error(*args, **kwargs):
    print('\033[0;31m', end='')
    print(*args, **kwargs)
    print('\033[0m', end='')


def setup_cli_argparse(parser):
    subparsers = parser.add_subparsers(dest='cmd')

    play_parser = subparsers.add_parser(
        'play',
        description=textwrap.dedent('''\
        Example:
            - fuo play fuo://netease/songs/3027393