A LightningModule has the following properties which you can access at any time

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#### current_epoch
The current epoch   

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#### dtype    
Current dtype    

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#### global_step
Total training batches seen across all epochs   

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#### gradient_clip
The current gradient clip value    

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#### on_gpu    
True if your model is currently running on GPUs. Useful to set flags around the LightningModule for different CPU vs GPU behavior.    

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#### Trainer
Last resort access to any state the trainer has. Changing certain properties here could affect your training run.