How to use Laravel Nova Multiselect filed on resource form

This Laravel Nova package allows you to add a multi-select to Nova's arsenal of fields.

  

                   Multiselect::make('រាជធានី/ខេត្ត', 'province')

                    ->options(\App\Models\Province::pluck('khmer_name', 'no'))

                    ->sortable()

                    ->singleSelect()->creationRules('required'),

                    Multiselect::make('ក្រុង/ស្រុក/ខណ្ឌ', 'district')

                    ->singleSelect()

                    // ->dependsOn('province')

                    ->options([

                     \App\Models\District::where('pro_id', 1)

                        ->get()

                        // ->groupBy('dis_code')

                        ->transform(function ($item, $key) {

                            return $item->pluck('dis_name', 'id');

                        })->toArray()

                    ]),

                    Multiselect::make('ឃុំ/សង្កាត់', 'commune')

                    ->options(\App\Models\Commune::pluck('com_khmer', 'id'))

                    ->sortable()

                    ->singleSelect()   ->creationRules('required'),

                    Multiselect::make('ភូមិ', 'village')

                    ->options(\App\Models\Village::pluck('v_khmer', 'id'))

                    ->sortable()

                    ->singleSelect()->creationRules('required'),

Please check the officail document on Github nova-multiselect-field