module CamlinternalLazy: sig .. end
Run-time support for lazy values. All functions in this module are for system use only, not for the casual user.
exception Undefined
type 'a t = 'a lazy_t
val force_lazy_block : 'a lazy_t -> 'a
val force_val_lazy_block : 'a lazy_t -> 'a
val force : 'a lazy_t -> 'a
val force_val : 'a lazy_t -> 'a
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https://www.ocaml.org/releases/4.11/htmlman/libref/CamlinternalLazy.html