docs: def parse(self, context):
          """
          Optionally trigger argument completion in the invoking shell.
  
          This method is called to see if bash argument completion is requested
          and to honor the request, if needed. This causes the process to exit
          (early) without giving other ingredients a chance to initialize or shut
          down.
  
          Due to the way argcomple works, no other ingredient can print()
          anything to stdout prior to this point.
          """
          try:
              import argcomplete
          except ImportError:
              return
          try:
              parser = context.parser
          except AttributeError:
              raise RecipeError(
                  """
                  The context doesn't have the parser attribute.
  
                  The auto-complete ingredient depends on having a parser object
                  to generate completion data for she shell.  In a typical
                  application this requires that the AutocompleteIngredient and
                  ParserIngredient are present and that the auto-complete
                  ingredient precedes the parser.
                  """)
          else:
              argcomplete.autocomplete(parser)