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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _fetch_url(url):
 """\ Returns the content of the provided URL. """

    try:
        resp = urllib2.urlopen(_Request(url))
    except urllib2.URLError:
        if 'wikileaks.org' in url:
            resp = urllib2.urlopen(_Request(url.replace('wikileaks.org', 'wikileaks.ch')))
        else:
            raise
    if resp.info().get('Content-Encoding') == 'gzip':
        return gzip.GzipFile(fileobj=StringIO(resp.read())).read().decode('utf-8')
    return resp.read().decode('utf-8')