@classmethod
    def geo_bounding_box(cls, field, top_left, bottom_right):
        return cls(geo_bounding_box={field: {'top_left': top_left, 'bottom_right': bottom_right}})
http://www.elasticsearch.org/guide/reference/query-dsl/geo-bounding-box-filter.html
dataset/ETHPy150Open ooici/elasticpy/elasticpy/filter.py/ElasticFilter.geo_bounding_box