code: def example_forward_input(self):
      return torch.rand(1, 3, 32, 32)
  
file_path: lightning-flash/tests/image/style_transfer/test_model.py
imports: from typing import Any
  from urllib.error import URLError
  import pytest
  import torch
  from flash.core.data.io.input import DataKeys
  from flash.core.utilities.imports import _TOPIC_IMAGE_AVAILABLE
  from flash.image.style_transfer import StyleTransfer
  from torch import Tensor
  from tests.helpers.task_tester import TaskTester
label_desc: Use image node_id 1 for calling the TestStyleTransfer obj's underlying member method code with example usage: obj.example_forward_input() and returns: torch