Defining an upstream dependency for a dbt seed

[TerryLines]

I have a situation where one of my operations restores a database from a backup file, so I would like all dbt assets to be downstream of this. @dbt_assets doesn't appear to support dependencies, however it's straightforward to add the dbt sources as outputs when running the op, which more or less solves this, except for seeds. Is there any way to define the seed as a downstream asset, using dbt.cli to materialize it outside of a dbt_asset context?