Signatures.COMMAND
val atomize : string list -> spec
val atomize_paths : string list -> spec
val execute : ?quiet:bool -> ?pretend:bool -> t -> unit
val execute_many : ?quiet:bool -> ?pretend:bool ->
t list -> (bool list * exn) option
val setup_virtual_command_solver : string -> (unit -> spec) -> unit
val print : Format.formatter -> t -> unit
val to_string : t -> string
val string_of_command_spec : spec -> string