def getMktDataTimeSeries(self, mongoDbCollection : Database, stockTicker, fromDate, toDate):
mkt_data = mongoDbCollection.find(
{"stockTicker": stockTicker, "date": {"$gte": fromDate, "$lt": toDate}},
{"date": 1, "volume": 1})
mkt_data = sorted(mkt_data, key=lambda k: k['date'])
# date_volume_list = date_volume_list[:-1]
date_volume_list = []
for entry in mkt_data:
point = {}
point['date'] = entry['date']
point['volume'] = entry['volume']
date_volume_list.append(point)
return date_volume_list
