Using Dependent Dropdown on a Livewire Component

Is there a way you can use a dependent filament dropdown when creating a livewire component. For my case, it returns an error like "Call to a member function level() on null". level() is the relationship function. The attached screenshot is from Student Model and the Livewire Component. The Form here is for creating a Student Data and I want the grade level to be a eloquent dropdown from the database. Filament Newbie Here.