Hi,

I'm fallowing the documentation about attribute hydration and found out that either there is a bug (the method does not exist) or the documentation is wrong.

In docs there is this code example:

Hash::make('coordinates')->fillUsing(
  static function ($model, $column, $value, array $validatedData) {
    $model->fill([
      "{$column}_longitude" = $value['long'],
      "{$column}_latitude" = $value['lat'],
    ]);
  }
);

In documentation it is not specified what namespace the class Hash is in and the only class I found with that name was LaravelJsonApi\Core\Json\Hash. It didn't work, the method make is undefined.

Somehow, while writing this issue, I found the class LaravelJsonApi\Eloquent\Fields\ArrayHash and tried that instead - it worked.

Please fix the documentation, replace Hash::make with ArrayHash::make (if I'm right about this).