Expected Behavior

I am trying to bind the realtrade into this frame work. Of course replacements of Backtest , _Broker , and datafeeding need rewrite. I got them (data API, broker API) on hand and had some ideas to plant in.
But I want to hear from @kernc you on your advices/thought first before start, esp. if there are already a reference ~

Actual Behavior

Steps to Reproduce

Additional info

• Backtesting version: