code: def test(case, **kargs):
      return case.subTest(
          typecode=loop.typecode,
          backend=loop.array.backend,
          **kargs,
      )
  
imports: import sys
  import itertools
  from mpi4py import MPI
label_desc: Use image node_id 5 for calling a global function with example usage: test(case) and returns: case