Create JWTAuth token in Factory Laravel

I have model User and need create db seeder with faker lib, but i have record _token using JWT. Now how to create _token with JWT?

$factory->define(App\User::class, function (Faker\Generator $faker) {
    static $password;

    return [
        'firstName' => $faker->name,
        'lastName' => $faker->name,
        'username' => $faker->unique()->username,
        'email' => $faker->unique()->safeEmail,
        'password' => md5('user123'),
        'bio' => $faker->sentence(3, true),
        'type' => $faker->randomElement(['seller', 'buyer']),
        'birthday' => $faker->dateTimeThisCentury,
        'avatar' => $faker->imageUrl($width = 400, $height = 400),
        'cover' => $faker->imageUrl($width = 851, $height = 315),
        'gender' => $faker->randomElement(['male', 'female']),
        'country' => $faker->country,
        '_token' => JWTAuth::fromUser() // ???,

    ];
});

via Chebli Mohamed