docs: def _export(self, args, **extra_args):
          """
          Export is the entry point for exporting docker images.
          """
          if not isinstance(args, argparse.Namespace):
              raise TypeError(logger.error("args should of an instance of argparse.Namespace"))
  
          # Warn the consumer about unsafe Docker Practices
          if args.no_validation:
              logger.warning("#######################################################\n"
                             "Validation has been disabled for this export operation.\n"
                             "This is an unsafe operation and does not verify the "
                             "run time nature of the container.\n"
                             "Any docker image created in this manner will not "
                             "be verified to start. Do not ship broken code.\n"
                             "#######################################################\n",
                             extra={'formatter': 'cli-warning'})
  
              # Require the consumer to verify their actions
              if not args.y:
                  validation_input = six.moves.input("Please type \'yes\' to export the container without validation: ")
  
                  if not (isinstance(validation_input, six.string_types) and ('yes' == validation_input)):
                      raise ValueError("Incorrect type defined. Required value: yes")
  
          # create new freight forwarder to create a commercial_invoice and export goods.
          freight_forwarder = FreightForwarder()
  
          # create commercial invoice this is the contact given to freight forwarder dispatch containers and images
          commercial_invoice = freight_forwarder.commercial_invoice(
              'export',
              args.data_center,
              args.environment,
              args.service,
              tagging_scheme=not args.no_tagging_scheme
          )
  
          # create commercial_invoice
          bill_of_lading = freight_forwarder.export(
              commercial_invoice,
              clean=args.clean,
              configs=args.configs,
              tags=args.tag,
              test=args.test,
              use_cache=args.use_cache,
              validate=not args.no_validation
          )
  
          # pretty lame... Need to work on return values through to app to make them consistent.
          exit_code = 0 if bill_of_lading else 1
  
          if exit_code != 0:
              exit(exit_code)