How to retrieve candle size for strategy

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I would like to make my strategies less depent on time intervals.
EA a max price swing between 5 minutes is statistically smaller then with 60 minute candles.

So when i use constants in my math i'd like to scale them by a factor of candle size  ea :

candlesize
-------------   *   constant
60

How can  i retrieve  candlesize inside the strategy ?