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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_installed_power(self):
 r""" Calculates the installed power of a wind turbine cluster. Returns ------- float Installed power of the wind turbine cluster. """

        for wind_farm in self.wind_farms:
            wind_farm.installed_power = wind_farm.get_installed_power()
        return sum(wind_farm.installed_power for wind_farm in self.wind_farms)