def METHOD_NAME(csv_obj, instance, min_join_ts=None, min_edit_ts=None):
    field_names = ['username', 'email', 'first_name',
                   'last_name', 'email_hash',
                   'allow_email_contact', 'role', 'created', 'organization',
                   'last_edit_model', 'last_edit_model_id',
                   'last_edit_instance_id', 'last_edit_field',
                   'last_edit_previous_value', 'last_edit_current_value',
                   'last_edit_user_id', 'last_edit_action',
                   'last_edit_requires_auth', 'last_edit_ref',
                   'last_edit_created']
    writer = csv.DictWriter(csv_obj, field_names)
    writer.writeheader()
    for user in _users_export(instance, min_join_ts, min_edit_ts):
        writer.writerow(_user_as_dict(user, instance))