This interface provides a standard way of attaching environment events to the log statistics system.
Implement this interface in the environment to activate the statistics support.
get_kpi_calculator() → Optional[maze.core.log_events.kpi_calculator.KpiCalculator]¶
If available, return an instance of a KPI calculator that can be used to calculate KPIs from events at the end of episode.
:return KPI calculator or None if KPIs are not supported in this env.