code: def _set_load_cb(
      code, element, data_type, callback_type, aux_type=None
  ):
      return string.Template(code).substitute(
          data_type=data_type,
          aux_type=aux_type,
          load_type=callback_type,
          element=element,
      )
  
imports: import contextlib
  import string
  import sys
  import tempfile
  from unittest import mock
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 2 for calling a global function with example usage: _set_load_cb(code, element, data_type, callback_type, aux_type) and returns: string