Context

This MR is a preliminary work before adding a host function to get the hash of a subtree of the durable storage.

Manually testing the MR

There should be no behavior change implied with this MR, so the CI shall prevail.

Document the interface of any function added or modified (see the coding guidelines)
Document any change to the user interface, including configuration parameters (see node configuration)
Provide automatic testing (see the testing guide).
For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
Select suitable reviewers using the Reviewers field below.
Select as Assignee the next person who should take action on that MR

Edited Mar 16, 2023 by Thomas Letan