code: def mathandler(**loadmat_kwargs):
      return MatHandler(**loadmat_kwargs)
  
imports: import io
  import json
  import os.path
  import pickle
  import tempfile
  import torch
  from torch.utils.data.datapipes.utils.common import StreamWrapper
label_desc: Use image node_id 6 for calling a global function with example usage: mathandler() and returns: MatHandler