_edd_deprected_argument() – Marks an argument in a function deprecated and informs when it’s been used
_edd_privacy_get_customer_id_for_email() – Since our eraser callbacks need to look up a stored customer ID by hashed email address, developers can use this to retrieve the customer ID associated with an email address that’s being requested to be deleted even after the customer has been anonymized.
_edd_privacy_get_payment_action() – Given an EDD_Payment, determine what action should be taken during the eraser processes.
