http://www.elasticsearch.org/guide/reference/query-dsl/geo-distance-range-filter.html
        Filters documents that exists within a range from a specific point

def geo_distance_range(cls, field, center, from_distance, to_distance, distance_type=None):
        '''
        http://www.elasticsearch.org/guide/reference/query-dsl/geo-distance-range-filter.html
        Filters documents that exists within a range from a specific point


        '''
        instance = cls(geo_distance_range={'from': from_distance, 'to': to_distance, field: center})
        if distance_type is not None:
            instance['geo_distance_range']['distance_type'] = distance_type
        return instance