code: def training_step(self, batch, batch_idx) -> Any:
      return self.backbone.training_step(
          self.convert_batch(batch), batch_idx
      )
  
file_path: lightning-flash/src/flash/core/integrations/pytorch_tabular/adapter.py
imports: from typing import Any, Callable, Dict, List, Optional, Union
  import torchmetrics
  from flash.core.adapter import Adapter
  from flash.core.data.io.input import DataKeys
  from flash.core.model import Task
label_desc: Use image node_id 4 for calling the PytorchTabularAdapter obj's underlying member method code with example usage: obj.training_step(batch, batch_idx) and returns: self