### Register Custom Middleware

Source: https://github.com/spatie/flare-client-php/blob/main/UPGRADING.md

Provides an example of how to register a custom middleware class with Flare using the `collectFlareMiddleware` method on the config object.

```php
$config->collectFlareMiddleware([
    MyMiddleware::class => [],
]);
```

--------------------------------

### Run Tests

Source: https://github.com/spatie/flare-client-php/blob/main/README.md

This command executes the test suite for the Flare client PHP package. It ensures that all functionalities are working as expected and helps in maintaining code quality.

```bash
composer test
```

--------------------------------

### Add Multiple Context Items

Source: https://github.com/spatie/flare-client-php/blob/main/UPGRADING.md

Shows how to add multiple context items to Flare simultaneously using an array with the `context()` method.

```php
$flare->context([
    'key' => 'value',
    'key2' => 'value2',
]);
```

--------------------------------

### Add Single Context Item

Source: https://github.com/spatie/flare-client-php/blob/main/UPGRADING.md

Demonstrates how to add a single context item to Flare using the `context()` method.

```php
$flare->context('key', 'value'); // Single item
```

--------------------------------

### Record Glow Message (New Way)

Source: https://github.com/spatie/flare-client-php/blob/main/UPGRADING.md

Illustrates the new method for recording glow messages with a level, using the `glow()` method and `record()`.

```php
$flare->glow()->record('This is a message from glow!', MessageLevels::Debug); // New way
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.