code: def creator(_, config):
          
          packer_script = render(config.script, model=config.model, env=config.env,
                                 variables=config.variables, item=config.item)
          filename = "packer.dry.run.see.comment"
  
          if not config.dry_run:
              # writing Packer file (JSON)
              filename = write_temporary_file(packer_script, 'packer-', '.json')
              packer_script = ''
  
          # rendering the Bash script for generating the Packer image
          template_file = os.path.join(os.path.dirname(__file__), 'templates/packer-image.sh.j2')
  
          with open(template_file) as handle:
              template = handle.read()
              config.script = render(template, debug=config.debug,
                                     packer_content=packer_script,
                                     packer_filename=filename)
  
          return Packer(config)
docs: Creator function for creating an instance of a Packer image script.