<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def parse_url(url, warning=True):
 """Parse URLs especially for Google Drive links. file_id: ID of file on Google Drive. is_download_link: Flag if it is download link of Google Drive. """

    parsed = urllib_parse.urlparse(url)
    query = urllib_parse.parse_qs(parsed.query)
    is_gdrive = parsed.hostname == 'drive.google.com'
    is_download_link = parsed.path.endswith('/uc')

    file_id = None
    if is_gdrive and 'id' in query:
        file_ids = query['id']
        if len(file_ids) == 1:
            file_id = file_ids[0]
    match = re.match(r'^/file/d/(.*?)/view$', parsed.path)
    if match:
        file_id = match.groups()[0]

    if is_gdrive and not is_download_link:
        warnings.warn(
            'You specified Google Drive Link but it is not the correct link '
            "to download the file. Maybe you should try: {url}"
            .format(url='https://drive.google.com/uc?id={}'.format(file_id))
        )

    return file_id, is_download_link