sig
val proceed_to_mass_killing :
Ketrew.Persistent_data.t ->
(bool, [> `Database of Ketrew.Persistent_data.Error.database ])
Unix_io.Deferred_result.t
val add_target_ids_to_kill_list :
Ketrew.Persistent_data.t ->
string list ->
(unit, [> `Database of Ketrew.Persistent_data.Error.database ])
Unix_io.Deferred_result.t
end