>List.replicate 3 (System.Guid.NewGuid());;

val it : Guid list =
  [485632d7-1fd6-4d9e-8910-7949d7b2b485; 485632d7-1fd6-4d9e-8910-7949d7b2b485;
   485632d7-1fd6-4d9e-8910-7949d7b2b485]