devel 1.8ΒΆ If Then Ref derived from pytorch_lightning.loggers.base.LightningLoggerBase derive from pytorch_lightning.loggers.logger.Logger PR12014 derived from pytorch_lightning.profiler.base.BaseProfiler derive from pytorch_lightning.profilers.profiler.Profiler PR12150 derived from pytorch_lightning.profiler.base.AbstractProfiler derive from pytorch_lightning.profilers.profiler.Profiler PR12106