val packages : string list
(** List of packages or package names as supplied on the command line. *)
+val verbose : bool
+ (** True if [--verbose] was given on the command line.
+ See also {!debug}. *)
+
val warnings : bool
(** If true, print warnings. [--no-warnings] sets this to false. *)
+
+val yum_config : string option
+ (** Yum configuration file. *)