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Operations on BatEnum without exceptions.

val find : ('a -> bool) -> 'a t -> 'a option

find f e returns Some x where x is the first element x of e such that f x returns true, consuming the enumeration up to and including the found element, or None if no such element exists in the enumeration, consuming the whole enumeration in the search.

Since find consumes a prefix of the enumeration, it can be used several times on the same enumeration to find the next element.