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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 info(self):
 """ retreive metadata and currenct price data """

        url = "{}/v7/finance/quote?symbols={}".format(
            self._base_url, self.ticker)
        r = _requests.get(url=url).json()["quoteResponse"]["result"]
        if len(r) > 0:
            return r[0]
        return {}