does a migration need a class in laravel code example

Example 1: add column in laravel migration

php artisan make:migration add_paid_to_users_table --table=users

Example 2: artisan make migration with model

php artisan make:Model Status -m

Example 3: fresh migrqte laravel

$ php artisan migrate:fresh

Dropped all tables successfully.
Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table
Migrated:  2014_10_12_000000_create_users_table
Migrating: 2014_10_12_100000_create_password_resets_table
Migrated:  2014_10_12_100000_create_password_resets_table