val count_contains : t -> string -> int
val unsorted_contains : t -> string -> unit
val text_size : t -> int
val doc_ids : t -> int*int
val subtree_tags : t -> Tag.t -> int
val get_text : t -> string
val count_contains : t -> string -> int
val unsorted_contains : t -> string -> unit
val text_size : t -> int
val doc_ids : t -> int*int
val subtree_tags : t -> Tag.t -> int
val get_text : t -> string