sig
val find : ('a -> bool) -> 'a Extlib.LazyList.t -> 'a option
val rfind : ('a -> bool) -> 'a Extlib.LazyList.t -> 'a option
val findi :
(int -> 'a -> bool) -> 'a Extlib.LazyList.t -> (int * 'a) option
val rfindi :
(int -> 'a -> bool) -> 'a Extlib.LazyList.t -> (int * 'a) option
val split_at :
int ->
'a Extlib.LazyList.t ->
[ `Invalid_index of int
| `Ok of 'a Extlib.LazyList.t * 'a Extlib.LazyList.t ]
val at :
'a Extlib.LazyList.t -> int -> [ `Invalid_index of int | `Ok of 'a ]
val assoc : 'a -> ('a * 'b) Extlib.LazyList.t -> 'b option
val assq : 'a -> ('a * 'b) Extlib.LazyList.t -> 'b option
end