class_docstr: Helper utils for Workflow Archiver tool.
  This class lists out all the methods such as validations for workflow archiving.
code: def validate_inputs(workflow_name, export_path):
      WorkflowExportUtils.check_workflow_name_regex_or_exit(
          workflow_name
      )
      if not os.path.isdir(os.path.abspath(export_path)):
          raise WorkflowArchiverError(
              "Given export-path {} is not a directory. "
              "Point to a valid export-path directory.".format(
                  export_path
              )
          )
  
imports: import logging
  import os
  import re
  import zipfile
  import shutil
  import tempfile
  from .workflow_archiver_error import WorkflowArchiverError
  from .manifest_components.manifest import Manifest
  from .manifest_components.workflow import Workflow
label_desc: Use image node_id 13 for calling the WorkflowExportUtils obj's underlying member method code with example usage: obj.validate_inputs(workflow_name, export_path) without return types