I am trying to create a job using "define_asset_job" from an asset that is a "dbt sources" not a model. the name is. "airbnb review234" , I know is a "assetsKey" because I am printing "asset_deps" of the "load_assets_from_dbt_project" when the dbt models are loaded. and I see the name there (see image) But is giving error, I can't not use sources dbt on "assetSelection" ?

an asset selection specifies the keys of the asset that you want that job to materialize -- dbt sources can't be executed (they're just references to other tables), so they are not valid keys

oooh Thanks. and what is the best approach to materialize all the downstream of a dbt source with dasgter? how can I select the direct child of a known source and materialize the downstream by code?