code: def check_alpha_beta(rank, world_size, port, physical_devices):
      disable_existing_loggers()
      launch(
          config={},
          rank=rank,
          world_size=world_size,
          host="localhost",
          port=port,
          backend="nccl",
      )
      profiler = AlphaBetaProfiler(physical_devices)
      ab_dict = profiler.profile_ab()
      for _, (alpha, beta) in ab_dict.items():
          assert (
              alpha > 0 and alpha < 1e-4 and beta > 0 and beta < 1e-10
          )
  
imports: import pytest
  from colossalai.device import AlphaBetaProfiler
  from colossalai.initialize import launch
  from colossalai.logging import disable_existing_loggers
  from colossalai.testing import parameterize, rerun_if_address_is_in_use, spawn
label_desc: Use image node_id 1 for calling a global function with example usage: check_alpha_beta(rank, world_size, port, physical_devices) without return types