class_docstr: Test convergence in gaussian process.
class_docstr_tok: ["Test","convergence","in","gaussian","process","."]
code: def setUpClass(cls) -> None:
      ray.init(local_mode=False, num_cpus=1, num_gpus=0)
  
imports: import math
  import numpy
  import pytest
  import ray
  from ray import train, tune
  from ray.tune.stopper import ExperimentPlateauStopper
  from ray.tune.search import ConcurrencyLimiter
  import unittest
label_desc: Use image node_id 1 for calling the ConvergenceTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types