Command "make:model" is not defined in lumen code example

Example 1: lumen make model

composer require flipbox/lumen-generator

Enable it in bootstrap/app.php:
$app->register(Flipbox\LumenGenerator\LumenGeneratorServiceProvider::class);

Example 2: Command "make:model" is not defined.

key:generate      Set the application key

make:command      Create a new Artisan command
make:controller   Create a new controller class
make:event        Create a new event class
make:job          Create a new job class
make:listener     Create a new event listener class
make:mail         Create a new email class
make:middleware   Create a new middleware class
make:migration    Create a new migration file
make:model        Create a new Eloquent model class
make:policy       Create a new policy class
make:provider     Create a new service provider class
make:seeder       Create a new seeder class
make:test         Create a new test class