fix import

[SAKURA-CAT]

Description

修复了空环境下的import错误

[Zeyi-Lin]

还是不行：

(test_env2) PS D:\Project\SwanLab> swanlab -v
Traceback (most recent call last):
  File "D:\anaconda\envs\test_env2\lib\runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "D:\anaconda\envs\test_env2\lib\runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "D:\anaconda\envs\test_env2\Scripts\swanlab.exe\__main__.py", line 4, in <module>
  File "D:\anaconda\envs\test_env2\lib\site-packages\swanlab\__init__.py", line 2, in <module>
    from .data import (
  File "D:\anaconda\envs\test_env2\lib\site-packages\swanlab\data\__init__.py", line 10, in <module>
    from .modules import (
  File "D:\anaconda\envs\test_env2\lib\site-packages\swanlab\data\modules\__init__.py", line 1, in <module>
    from .audio import Audio
  File "D:\anaconda\envs\test_env2\lib\site-packages\swanlab\data\modules\audio\__init__.py", line 22, in <module>
    class Audio(MediaType):
  File "D:\anaconda\envs\test_env2\lib\site-packages\swanlab\data\modules\audio\__init__.py", line 27, in Audio
    data_or_path: Union[str, np.ndarray],
AttributeError: 'NoneType' object has no attribute 'ndarray'

[SAKURA-CAT]

根据这段代码和报错信息来看，你没有完成更新 @Zeyi-Lin ：

[SAKURA-CAT]

看起来image部分需要使用按需导入的方式，这将在新pr完成