module Xml_sigs:sig
..end
module type T =sig
..end
module type Iterable =sig
..end
module type Info =sig
..end
module type Output =sig
..end
module type Typed_xml =sig
..end
module type Iterable_typed_xml =sig
..end
module type Printer =sig
..end
module type Simple_printer =sig
..end
module type Typed_printer =sig
..end
module type Typed_simple_printer =sig
..end