Thoughts on multi operation naming

Hey there,

I have been using Ecto.Multi — Ecto v3.14.0 for a while now, and I was wondering what kind of convention do other people follow when they are naming the operations, especially when it is a Multi in an Enum.reduce/3.
With a regular Multi I usually use an atom as the examples do.

For a Multi in an reduce such as:

Enum.reduce(user_ids, Multi.new(), fn user_id, multi ->
      blocked_user = Accounts.get_user_by_hash_id(user_id)

      changeset = Block.changeset(%Block{}, user, blocked_user)

      multi
      |> Multi.insert("user_block_#{user.id}_#{blocked_user.id}", changeset)
    end)
    |> Repo.transaction()

I mostly use a string based on the structs I use, but this relies on both of them having an id and found.
Sometimes I use a uuid appended after the “user_block” for example, and in the docs I saw I could use a tuple.

How about you?