code: def test_cluster_name_required(gcloud_run):
      res = runner.invoke(cli.app, ["modify"])
      assert "Missing argument 'NAME'" in res.stderr
      assert gcloud_run.call_count == 0
  
imports: import pytest
  from typer.testing import CliRunner
  from hailtop.hailctl.dataproc import cli
label_desc: Use image node_id 3 for calling a global function with example usage: test_cluster_name_required(gcloud_run) without return types