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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_queryset(self):
 """ Returns a QuerySet which access remote SF objects. """

        if router.is_sf_database(self.db):
            q = models_sql_query.SalesforceQuery(self.model, where=compiler.SalesforceWhereNode)
            return query.SalesforceQuerySet(self.model, query=q, using=self.db)
        return super(SalesforceManager, self).get_queryset()