code: def test_pipelinable():
      spawn(run_pipelinable, 1)
  
file_path: colossalai/tests/test_legacy/test_pipeline/test_pipelinable.py
imports: import pytest
  import torch
  from colossalai.legacy.pipeline.pipelinable import PipelinableContext
  from colossalai.testing import rerun_if_address_is_in_use, spawn
label_desc: Use image node_id 2 for calling a global function with example usage: test_pipelinable() without return types