if ( ! wp_next_scheduled( 'wpf_import_users_daily' ) ) {
    wp_schedule_event(time(), 'daily', 'wpf_import_users_daily' );
}

add_action('wpf_import_users_daily', 'do_wpf_import');

function do_wpf_import() {

    wp_fusion()->batch->batch_init( 'import_users', array( 'tag' => '0t06A000000CaW8QAK' ) );

}