Ben.Queryval of_expr : Types.expr -> tval of_string : string -> tval to_string : ?escape:bool -> t -> stringval fields : Core.StringSet.t -> t -> Core.StringSet.tval eval : 'a Package.kind -> 'a Package.t -> t -> boolval eval_source : Package.source Package.t -> t -> boolval eval_binary : Package.binary Package.t -> t -> bool