Checkpoint files location when WandbLogger 
I am trying to look for checkpoint files when using WandbLogger. However checkpoint files doesn't seem to be exist in wandb folder as well. This is despite the fact that log_model=True is setup in WandbLogger. Please help me on this, I am not sure if I am missing something on this.
OS is macOS Mojave. However I noticed the issue on Colab, didn't run on my local machine though.