def download(url, save_dir='.'):
    """Downloads trained weights and config.

    Args:
        url (str): target url.
        save_dir (str): store directory.
    """
    pass

@@ -1,8 +1,62 @@
+import io%0Aimport os%0Aimport zipfile%0A%0Aimport requests%0A%0A%0A
 def down
@@ -116,19 +116,33 @@
 ghts
- and config
+, config and preprocessor
 .%0A%0A 
@@ -239,8 +239,246 @@
    p
-ass
+rint('Downloading...')%0A    r = requests.get(url, stream=True)%0A    with zipfile.ZipFile(io.BytesIO(r.content)) as f:%0A        if not os.path.exists(save_dir):%0A            os.mkdir(save_dir)%0A        f.extractall(save_dir)%0A    print('Complete!')
 %0A

Implement download method