Add non-owned range_de

[maurolacy]

Use lifetimes / references to create a non-owned approach to key deserialization, if possible. Not sure if this is actually possible, as these keys come from storage, and are an ephemeral / referenced type (&[u8]) already.

serde has a Deserialize trait that works with references, as well as a DeserializeOwned one. Let's take a look at it to understand it better, and see if a similar approach can be applied here.

[ethanfrey]

Update here?

Is this possible or not? If possible, is there any idea how to proceed?

No need to start on it, but it would be great to document an approach that could work. Or close it as "won't fix" (I kind of feel the second one, as I am unsure this is possible)

[maurolacy]

Closing / archiving this, as we are not sure how to do it, or if it's possible at all.