tttjjj/elt_bench huggingface dataset:
id: The ID of the member.
email_address: Email address for a subscriber.
email_client: The list member's email client.
email_type: Type of email this member asked to get ('html' or 'text').
status: Subscriber's current status.  Possible Values: subscribed, unsubscribed, cleaned, pending, transactional, archived
list_id: The ID of the list the member belongs to.
timestamp_signup: The date and time the subscriber signed up for the list.
timestamp_opt: The date and time the subscribe confirmed their opt-in status.
last_changed: The date and time the member's info was last changed.
country_code: The member's unique code for the location country.
dstoff: The member's offset for timezones where daylight saving time is observed.
gmtoff: The member's time difference in hours from GMT.
ip_opt: The IP address the subscriber used to confirm their opt-in status.
ip_signup: IP address the subscriber signed up from.
language: If set/detected, the subscriber's language.
latitude: The member's location latitude.
longitude: The member's location longitude.
member_rating: Star rating for this member, between 1 and 5.
timezone: The timezone for the member's location.
unique_email_id: An identifier for the address across all of Mailchimp.
vip: VIP status for subscriber.