type alias Deno.KvEntryMaybe
Unstable
An optional versioned pair of key and value in a [`Deno.Kv`](../././~/Deno.Kv).
This is the same as a [`KvEntry`](../././~/Deno.KvEntry), but the `value` and `versionstamp`
fields may be `null` if no value exists for the given key in the KV store.