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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 init(self):
 """Returns a tuple pair of cookie and crumb used in the request"""

        url = 'https://finance.yahoo.com/quote/%s/history' % (self.ticker)
        r = requests.get(url)
        txt = r.content
        cookie = r.cookies['B']
        pattern = re.compile('.*"CrumbStore":\{"crumb":"(?P<crumb>[^"]+)"\}')

        for line in txt.splitlines():
            m = pattern.match(line.decode("utf-8"))
            if m is not None:
                crumb = m.groupdict()['crumb']
                crumb = crumb.replace(u'\\u002F', '/')
        return cookie, crumb