code: def identity_collate_fn(x):
      return x
  
imports: from abc import abstractmethod
  from typing import Any, Callable, Optional
  import torch.jit
  from torch import Tensor, nn
  from torch.utils.data import DataLoader, Sampler
  import flash
  from flash.core.data.io.input import InputBase
  from flash.core.data.io.input_transform import InputTransform
  from flash.core.model import DatasetProcessor, ModuleWrapperBase, Task
  from flash.core.utilities.types import INPUT_TRANSFORM_TYPE
label_desc: Use image node_id 1 for calling a global function with example usage: identity_collate_fn(x) and returns: x