code: def forward(self, x):
      return self.head(self.backbone(x))
  
imports: from argparse import ArgumentParser
  from typing import Any, Tuple, Union
  import pytest
  import torch
  from flash import Trainer
  from flash.core.classification import ClassificationTask
  from flash.core.utilities.imports import _TOPIC_CORE_AVAILABLE
  from pytorch_lightning.callbacks.early_stopping import EarlyStopping
  from pytorch_lightning.callbacks.finetuning import BaseFinetuning
  from pytorch_lightning.core.lightning import LightningModule
  from torch import nn
  from torch.nn import functional
  from torch.optim.optimizer import Optimizer
  from torch.utils.data import DataLoader
label_desc: Use image node_id 2 for calling the DummyClassifier obj's underlying member method code with example usage: obj.forward(x) and returns: self