parameters: ()
return_statement: return _wf
docstring: Return Workflow object for this module.
  
      Returns:
          workflow.Workflow: Workflow object for current workflow.
docstring_summary: Return Workflow object for this module.
docstring_tokens: Return Workflow object for this module .
function: def wf():
      """Return Workflow object for this module.
  
      Returns:
          workflow.Workflow: Workflow object for current workflow.
      """
      global _wf
      if _wf is None:
          _wf = workflow.Workflow()
      return _wf
function_tokens: def wf ( ) : global _wf if _wf is None : _wf = workflow . Workflow ( ) return _wf