CheckboxList (BulkToggle)

Select::make('country_id')
                    ->required()
                    ->reactive()
                    ->disabledOn('edit')
                    ->afterStateUpdated(fn(Set $set) => $set('provinces', null))
                    ->native(false)
                    ->options(Country::all()->pluck('name' ,'id')),

                Forms\Components\CheckboxList::make('provinces')
                    ->visible(fn($get) => $get('country_id'))
                    ->columnSpanFull()
                    ->searchable()
                    ->bulkToggleable()
                    ->columns(3)
                    ->relationship('provinces', 'name', function ($query, $get) {
                        if($get('country_id')) {
                            return $query->where('country_id', $get('country_id'));
                        }
                        return $query;
                    }),

Select::make('country_id')
                    ->required()
                    ->reactive()
                    ->disabledOn('edit')
                    ->afterStateUpdated(fn(Set $set) => $set('provinces', null))
                    ->native(false)
                    ->options(Country::all()->pluck('name' ,'id')),

                Forms\Components\CheckboxList::make('provinces')
                    ->visible(fn($get) => $get('country_id'))
                    ->columnSpanFull()
                    ->searchable()
                    ->bulkToggleable()
                    ->columns(3)
                    ->relationship('provinces', 'name', function ($query, $get) {
                        if($get('country_id')) {
                            return $query->where('country_id', $get('country_id'));
                        }
                        return $query;
                    }),