--- /dev/null
+(* 'top'-like tool for libvirt domains.
+ (C) Copyright 2007-2017 Richard W.M. Jones, Red Hat Inc.
+ http://libvirt.org/
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*)
+
+(** CSV output functions. *)
+
+(* Hook for [Opt_csv] to override (if present). *)
+val csv_write : (string list -> unit) ref
+
+val write_csv_header : bool * bool * bool * bool -> bool -> unit
+
+val append_csv : Types.setup -> bool * bool * bool * bool -> Collect.stats -> unit