in seeder file

<?php

namespace Database\\Seeders;

use Illuminate\\Database\\Seeder;
use Faker\\Generator;
use Illuminate\\Container\\Container;

class MySeeder extends Seeder
{
    /**
     * The current Faker instance.
     *
     * @var \\Faker\\Generator
     */
    protected $faker;

    /**
     * Create a new seeder instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->faker = $this->withFaker();
    }

    /**
     * Get a new Faker instance.
     *
     * @return \\Faker\\Generator
     */
    protected function withFaker()
    {
        return Container::getInstance()->make(Generator::class);
    }

    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        // ...
    }
}

REF

• resource
• Faker