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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 _parse_forecasts(self):
 """ Returns a list of instances of the forecast.Forecast class. Each instance of the class is instantiated with the attributes of the forecast elements in the RSS feed. """

        forecasts = self._channel.findall(
            './/{0}{1}'.format(self.weather_namespace, 'forecast')
        )
        return [Forecast(forecast.attrib) for forecast in forecasts]