code: def test_no_metadata_file():
      settings = SettingsStatic(
          make_proto_settings(
              **{"files_dir": "./", "disable_job_creation": False}
          )
      )
      job_builder = JobBuilder(settings)
      artifact = job_builder.build()
      assert artifact is None
  
imports: import json
  import os
  import random
  import string
  from google.protobuf.wrappers_pb2 import BoolValue, StringValue
  from wandb.proto import wandb_settings_pb2
  from wandb.sdk.internal.job_builder import JobBuilder
  from wandb.sdk.internal.settings_static import SettingsStatic
  from wandb.util import make_artifact_name_safe
label_desc: Use image node_id 12 for calling a global function with example usage: test_no_metadata_file() without return types