pytorch_pfn_extras.profiler.get_tracer# pytorch_pfn_extras.profiler.get_tracer(tracer_cls=<class 'pytorch_pfn_extras.profiler._tracing.ChromeTracer'>, *params)# Gets the current global tracer. Parameters: tracer_cls (type of Tracer) – type of tracer to create if the global tracer hasn’t been initialized params (Any) – Return type: Tracer