wpmem_mc_get_list_member() return array

array {
    @type string $id The MailChimp ID of the user (MD5 hash of the user's email address).
    @type string $email_address The user's email
    @type string $unique_email_id 
    @type int    $web_id 
    @type string $email_type html|text
    @type string $status subscribed|unsubscribed|pending
    @type array  $merge_fields array {
        Contains an array of merge fields keyed by merge field ID
        @type string $FNAME Emit
        @type string $LNAME Brown
    }

    @type array $interests array {
        @type string $interest Keyed by interest_id
    }

    @type array  $stats array {
        @type int $avg_open_rate 0
        @type int $avg_click_rate 0
    }

    @type string $ip_signup The user's IP address at signup
    @type string $timestamp_signup ISO 8601 format of signup e.g. 2021-03-07T05:03:15+00:00
    @type string $ip_opt 
    @type string $timestamp_opt ISO 8601 format of optin e.g. 2021-03-07T05:03:15+00:00
    @type int    $member_rating An integer 1-5 representing the engagement rating
    @type string $last_changed ISO 8601 format of last change e.g. 2021-03-07T05:03:15+00:00
    @type string $language 
    @type string $vip 
    @type string $email_client 
    @type array  $location array {
        @type int    $latitude 0
        @type int    $longitude 0
        @type int    $gmtoff 0
        @type int    $dstoff 0
        @type string $country_code 
        @type string $timezone 
    }

    @type string $source API - Generic
    @type int    $tags_count 0
    @type array  $tags array {
        An array of tag IDs
    }

    @type string $list_id The list ID
}