code: def keytype_path_to(args, keytype):
      
      if keytype == "admin":
          return '{cluster}.client.admin.keyring'.format(
              cluster=args.cluster)
      if keytype == "mon":
          return '{cluster}.mon.keyring'.format(
              cluster=args.cluster)
      return '{cluster}.bootstrap-{what}.keyring'.format(
              cluster=args.cluster,
              what=keytype)
docs: Get the local filename for a keyring type