Oban.Repo.to_sql

You're seeing just the function to_sql, go back to Oban.Repo module for more information.
Link to this function

to_sql(conf, kind, queryable)

View Source (since 2.2.0)

Specs

to_sql(config(), :all | :update_all | :delete_all, Ecto.Queryable.t()) ::
  {String.t(), [term()]}

Wraps Ecto.Adapters.SQL.Repo.to_sql/2.