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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(self,coordinate_system):
 """ Return the pmagpy paramters dictionary associated with this fit and the given coordinate system @param: coordinate_system -> the coordinate system who's parameters to return """

        if coordinate_system == 'DA-DIR' or coordinate_system == 'specimen':
            return self.pars
        elif coordinate_system == 'DA-DIR-GEO' or coordinate_system == 'geographic':
            return self.geopars
        elif coordinate_system == 'DA-DIR-TILT' or coordinate_system == 'tilt-corrected':
            return self.tiltpars
        else:
            print("-E- no such parameters to fetch for " + coordinate_system + " in fit: " + self.name)
            return None