code: def simclr_collate_fn(samples):
      """Multi-crop collate function for VISSL integration.
  
      Run custom collate on a single key since VISSL transforms affect only DataKeys.INPUT
  
      """
      result = vissl_collate_helper(samples)
  
      inputs = []
      num_views = len(samples[0][DataKeys.INPUT])
      view_idx = 0
      while view_idx < num_views:
          for batch_ele in samples:
              imgs = batch_ele[DataKeys.INPUT]
              inputs.append(imgs[view_idx])
  
          view_idx += 1
  
      result[DataKeys.INPUT] = torch.stack(inputs)
  
      return result
  
imports: import torch
  from flash.core.data.io.input import DataKeys
label_desc: Use image node_id 3 for calling a global function with example usage: simclr_collate_fn(samples) and returns: result