tttjjj/elt_bench huggingface dataset:
created_at: Time that this membership is created in Pardot
id: Pardot ID for this list membership
list_id: TPardot ID of the list for this membershipBD
opted_out: If value is 1, the prospect is unsubscribed from receiving emails from this list
prospect_id: Pardot ID of the prospect for this membership
updated_at: Last time that this membership was updated