code: def _setup_cupy():
      global cupy
      if cupy is None:
          import cupy as cupy
  
imports: import nvidia.dali.python_function_plugin
  from nvidia.dali import backend
  from nvidia.dali import ops
  from nvidia.dali.ops import _registry
  from nvidia.dali.data_node import DataNode
  from nvidia.dali.pipeline import Pipeline
  from nvidia.dali.types import CUDAStream
label_desc: Use image node_id 1 for calling a global function with example usage: _setup_cupy() without return types