code: def test_invalid_rank(self):
      with pytest.raises(ValueError):
          init_process_group(2, -1)
  
      with pytest.raises(ValueError):
          init_process_group(2, 3)
  
imports: import pathlib
  import subprocess
  import sys
  import unittest
  import os
  import numpy
  import pytest
  from cupy.cuda import nccl
  from cupy import testing
  from cupyx.distributed import init_process_group
  from cupyx.distributed._nccl_comm import _mpi_available
label_desc: Use image node_id 4 for calling the TestInitDistributed obj's underlying member method code with example usage: obj.test_invalid_rank() without return types