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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_assets(cls, lat, lon, begin=None, end=None):
 """ Returns date and ids of flyovers Args: lat: latitude float lon: longitude float begin: date instance end: date instance Returns: json """

        instance = cls('planetary/earth/assets')

        filters = {
            'lat': lat,
            'lon': lon,
            'begin': begin,
            'end': end,
        }

        return instance.get_resource(**filters)