code: def ray_cluster_7cpu(request):
      with _ray_start(request, num_cpus=7):
          yield
  
imports: import contextlib
  import os
  import tempfile
  import time
  import uuid
  from unittest import mock
  import pytest
  from ludwig.constants import BATCH_SIZE, COMBINER, EPOCHS, HYPEROPT, INPUT_FEATURES, NAME, OUTPUT_FEATURES, TRAINER, TYPE
  from ludwig.hyperopt.run import hyperopt
  from tests.integration_tests.utils import category_feature, generate_data, text_feature
label_desc: Use image node_id 12 for calling a global function with example usage: ray_cluster_7cpu(request) without return types