Make.Device
module A : Owl_types_ndarray_mutable.Sig
type device
type value
val make_device : unit -> device
val arr_to_value : A.arr -> value
val value_to_arr : value -> A.arr
val elt_to_value : A.elt -> value
val value_to_elt : value -> A.elt
val value_to_float : value -> float
val is_arr : value -> bool
val is_elt : value -> bool