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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 add_linked_station(self, datfile, station, location=None):
 """Add a linked or fixed station"""

        if datfile not in self.fixed_stations:
            self.fixed_stations[datfile] = {station: location}
        else:
            self.fixed_stations[datfile][station] = location

        if location and not self.base_location:
            self._utm_zone = location.zone
            self._utm_datum = location.datum
            self._utm_convergence = location.convergence