module M = Metrics

type t =
  { path : string
  ; size : int
  }

val find : string -> t Stream.t
(** Find all files in the directory tree, starting from the given root path *)

val lookup : string Stream.t -> t Stream.t
(** Lookup file info for given paths *)

val head : t -> len:int -> metrics:M.t -> string

val filter_out_unique_sizes : t Stream.t -> metrics:M.t -> t Stream.t
val filter_out_unique_heads : t Stream.t -> len:int -> metrics:M.t -> t Stream.t