PyTorch Tabular on tabular datasets without categorical columns/features

[AishwaryaRaghavendra]

I'm curious to know if PyTorch Tabular with its available models is suitable for numerical tabular datasets without any categorical column?

data_config = DataConfig( target=target, continuous_cols=num_cols, categorical_cols=[] )

1. Is the categorical_cols variable in data_config definition is optional?
2. Can it be defined as empty list?
3. Which models under Pytorch-Tabular support this use case?