class Deno.KvU64 Unstable UNSTABLE: New API, yet to be vetted. Wrapper type for 64-bit unsigned integers for use as values in a Deno.Kv. Constructors new KvU64(value: bigint) Create a new KvU64 instance from the given bigint value. If the value is signed or greater than 64-bits, an error will be thrown. Properties readonly value: bigint The value of this unsigned 64-bit integer, represented as a bigint.