code: def test_moe_kernel(rs, hidden_size, data_type, topk):
      spawn(
          run_routing,
          4,
          rs=rs,
          hidden_size=hidden_size,
          data_type=data_type,
          topk=topk,
      )
  
file_path: colossalai/tests/test_moe/test_kernel.py
imports: import pytest
  import torch
  import torch.distributed
  import colossalai
  from colossalai.moe import SparseMLP
  from colossalai.moe.manager import MOE_MANAGER
  from colossalai.testing import rerun_if_address_is_in_use, spawn
  from colossalai.utils import get_current_device
label_desc: Use image node_id 3 for calling a global function with example usage: test_moe_kernel(rs, hidden_size, data_type, topk) without return types