Call (drom_lib.Drom

val call : 
  ?exec:bool ->
  ?stdout:Unix.file_descr ->
  ?stderr:Unix.file_descr ->
  ?print_args:string list ->
  string list ->
  unit

val silent : ?print_args:string list -> string list -> unit

val call_get_fst_line : string -> string option

val wget : url:string -> output:string -> unit

val before_hook : ?args:string list -> command:string -> unit -> unit

val after_hook : ?args:string list -> command:string -> unit -> unit