code: def alias_create(self, args: argparse.Namespace) -> None:
          
  
          # Validate the alias name
          valid, errmsg = self.statement_parser.is_valid_command(args.name)
          if not valid:
              self.perror("Invalid alias name: {}".format(errmsg), traceback_war=False)
              return
  
          if args.name in self.macros:
              self.perror("Alias cannot have the same name as a macro", traceback_war=False)
              return
  
          utils.unquote_redirection_tokens(args.command_args)
  
          # Build the alias value string
          value = args.command
          if args.command_args:
              value += ' ' + ' '.join(args.command_args)
  
          # Set the alias
          result = "overwritten" if args.name in self.aliases else "created"
          self.aliases[args.name] = value
          self.poutput("Alias '{}' {}".format(args.name, result))
docs: Create or overwrite an alias