code: def test_gen_workflow_archive(self, patches):
      patches.arg_parse.workflow_archiver_args_parser.parse_args.return_value = (
          self.args
      )
      generate_workflow_archive()
      patches.export_method.assert_called()
  
file_path: serve/workflow-archiver/workflow_archiver/tests/unit_tests/test_workflow_packaging.py
imports: from collections import namedtuple
  import pytest
  from workflow_archiver.workflow_packaging import generate_workflow_archive, package_workflow
  from workflow_archiver.workflow_packaging_utils import WorkflowExportUtils
label_desc: Use image node_id 2 for calling the TestWorkflowPackaging obj's underlying member method code with example usage: obj.test_gen_workflow_archive(patches) without return types