code: def dummy_input(self):
      return self.get_dummy_input()
  
file_path: llmga/llmga/diffusers/tests/models/test_unet_blocks_common.py
imports: import unittest
  from typing import Tuple
  import torch
  from diffusers.utils.testing_utils import floats_tensor, require_torch, torch_all_close, torch_device
  from diffusers.utils.torch_utils import randn_tensor
label_desc: Use image node_id 1 for calling the UNetBlockTesterMixin obj's underlying member method code with example usage: obj.dummy_input() and returns: self