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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 get_named_range(self, name):
 """ Retrieves a Named range by it's name """

        url = self.build_url(self._endpoints.get('get_named_range').format(name=name))
        response = self.session.get(url)
        if not response:
            return None
        return self.named_range_constructor(parent=self, **{self._cloud_data_key: response.json()})