What is the module attribute in the training_loop.py? 
I want to train my model using pytorch_lightning but, when I pass my model into the trainer.fit(mymodel) function an error gets thrown. It says "my model" has no attribute 'module'. I searched through the pytorch_lightning files and found it in pytorch_lightning/trainer/training_loop.py on line 123 - 125. There is actually a class attribute that's called module, but my model class doesn't have it.
#Code
```
if args.load_model_from:
speech_module = SpeechModule.load_from_checkpoint(args.load_model_from, model=model, args=args)
else:
speech_module = SpeechModule(model, args)
logger = TensorBoardLogger(args.logdir, name='speech_recognition')
trainer = Trainer(logger=logger)

trainer = Trainer(
    max_epochs=args.epochs, gpus=args.gpus,
    num_nodes=args.nodes, distributed_backend=None,
    logger=logger, gradient_clip_val=1.0,
    val_check_interval=args.valid_every,
    checkpoint_callback=checkpoint_callback(args),
    resume_from_checkpoint=args.resume_from_checkpoint
)
trainer.fit(speech_module)

My environment:
 - OS: macOS 11.0.1
 - Packaging: pip
 - Version: python 3.7.9
- CPU/GPU: M1 (16GB shared cache and memory)