ILock.IdxIndex in index-based symbolic lock
include module type of struct include Printable.StdLeaf endval equal : t -> t -> Ppx_deriving_runtime.boolval compare : t -> t -> Ppx_deriving_runtime.intval hash : t -> intval show : t -> stringinclude sig ... endval pretty : unit -> t -> Printable.Pretty.docval printXml : 'a BatInnerIO.output -> t -> unitval to_yojson : t -> [> `String of string ]val top : unit -> t