Auto Serial Number column to a Table in NT

autoserialnumber.php

// Auto serial number
add_filter('ninja_table_rendering_table_vars', function($table_vars, $table_id, $tableArray){
    $target_id = 1320;
    if ($tableArray['table_id'] != $target_id) { 
        return $table_vars; 
    }

    $counter_column = [
        'name' => 'serial',
        'key' => 'serial',
        'title' => 'Serial',
    ];
    array_unshift($table_vars['columns'], $counter_column);
    return $table_vars;
}, 10, 3);

add_action('ninja_tables_get_public_data', function($formatted_data, $ID){
    $i = 1;
    foreach ($formatted_data as $key => $value) {
        $formatted_data[$key]['serial'] = $i++;
    }
    return $formatted_data;
}, 10, 2);