code: def test_fixed():
      check_nodes(ThreadPool(id="fixed"))
      check_nodes(ProcessPool(id="fixed"))
      check_nodes(ParallelPool(id="fixed"))
  
file_path: pathos/pathos/tests/test_join.py
imports: from pathos.parallel import *
  from pathos.multiprocessing import *
  from pathos.threading import *
  from pathos.helpers import cpu_count
  import sys
  import dill
label_desc: Use image node_id 7 for calling a global function with example usage: test_fixed() without return types