i am looking to use the API to automate some strategies that i run on prorealtime however i have seen some differences between prices between those shown in Prorealtime vs the API. For example, for AUD/JPY on 4 hour timespan, the API returns a bid and ask each for open, high, low and close a candlestick rather than a single price which is what prorealtime does.A more specific example, in prorealtime, for 2021/02/16 04:00:00 candlestick it has low price of 8200.4, where as the API returns bid of 8199.5 and ask of 8201.0? How can i determine the actual low price?Thanks