def __init__(self, **kwargs):
types = kwargs.get('types', '050000')
polygon = kwargs.get('polygon',
'120.107076,30.326175;120.085948,30.316822;')
th = TypeHelper(types)
ph = PolygonHelper(polygon)
self.types_list = th.to_list()
self.polygon = ph.to_str()
self.rid = ph.get_hash() + th.get_hash()
self.key = 'e444f2d824f09ff1708854c1e66d0e19'
self.offset = 20
self.url = 'http://restapi.amap.com/v3/place/polygon'
self.lock = threading.Lock()
