code: def test_workers_configuration(gcloud_run):
      runner.invoke(
          cli.app, ["start", "--num-workers=4", "test-cluster"]
      )
      assert "--num-workers=4" in gcloud_run.call_args[0][0]
  
imports: import pytest
  from typer.testing import CliRunner
  from hailtop.hailctl.dataproc import cli
label_desc: Use image node_id 6 for calling a global function with example usage: test_workers_configuration(gcloud_run) without return types