code: def vissl_collate_helper(samples):
      result = []
  
      for batch_ele in samples:
          _batch_ele_dict = {}
          _batch_ele_dict.update(batch_ele)
          _batch_ele_dict[DataKeys.INPUT] = -1
  
          result.append(_batch_ele_dict)
  
      return torch.utils.data._utils.collate.default_collate(result)
  
imports: import torch
  from flash.core.data.io.input import DataKeys
label_desc: Use image node_id 1 for calling a global function with example usage: vissl_collate_helper(samples) and returns: torch