def to_relative(self, timespan):

        # timedelta -> timedelta
        return timespan
Returns the symmetric difference of the geographic field in a
dataset/ETHPy150Open ReactiveX/RxPY/rx/concurrency/historicalscheduler.py/HistoricalScheduler.to_relative--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/contrib/gis/db/models/query.py/GeoQuerySet.sym_difference