Laravelでカスタムヘルパー関数定義

app/
└── Helpers/
    └── hello-helpers.php

<?php

if (! function_exists('hello_jp')) {
    function hello_jp(): string
    {
        return 'こんにちは';
    }
}

    "autoload": {
        "files": [
            "app/Helpers/hello-helpers.php"
        ],
        "psr-4": {
            "App\\": "app/",
            "Database\\Factories\\": "database/factories/",
            "Database\\Seeders\\": "database/seeders/"
        }
    },

composer dump-autoload
...(略)
Generated optimized autoload files containing 6743 classes

public function hello()
{
    return hello_jp(); // こんにちは
}