->live on custom page Help

<?php

namespace App\Filament\Resources\FcmNotificationTemplateResource\Pages;

use App\Filament\Resources\FcmNotificationTemplateResource;
use App\Models\FcmNotificationTemplate;
use App\Models\User;
use Filament\Forms\Components\MarkdownEditor;
use Filament\Forms\Components\Section;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Concerns\InteractsWithForms;
use Filament\Forms\Contracts\HasForms;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Resources\Pages\Page;

class SendTemplateToUser extends Page implements HasForms
{
    use InteractsWithForms;

    protected static string $resource = FcmNotificationTemplateResource::class;

    protected static string $view = 'filament.resources.fcm-notification-template-resource.pages.send-template-to-user';

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                Section::make('Template')
                    ->schema([
                        Select::make('Template')
                            ->options(FcmNotificationTemplate::all()->pluck('name', 'id'))
                            ->live()
                            ->afterStateUpdated(function (Select $component) {
                                dd('here');
                                return $component
                                    ->getContainer()
                                    ->getComponent('dynamicVariableFields')
                                    ->getChildComponentContainer()
                                    ->fill();
                            }),
                        Select::make('User')
                            ->options(User::all()->pluck('name', 'id'))
                            ->searchable()
                    ]),
                Section::make('Variables')
                    ->schema(function (Get $get) {
                        $templateName = $get('Template');
                        if(!$templateName) return [];
                        $template = FcmNotificationTemplate::find($get('Template'));
                        dd($template);
                        return [
                          TextInput::make('title')
                          ->default($template->title),
                        ];
//                        return collect($template-)->map(function ($variable) {
//                            return TextInput::make($variable);
//                        });
                    })->key('dynamicVariableFields'),
                TextInput::make('title')
                    ->required(),
                MarkdownEditor::make('content'),
                // ...
            ])
            ->statePath('data');
    }
}

<?php

namespace App\Filament\Resources\FcmNotificationTemplateResource\Pages;

use App\Filament\Resources\FcmNotificationTemplateResource;
use App\Models\FcmNotificationTemplate;
use App\Models\User;
use Filament\Forms\Components\MarkdownEditor;
use Filament\Forms\Components\Section;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Concerns\InteractsWithForms;
use Filament\Forms\Contracts\HasForms;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Resources\Pages\Page;

class SendTemplateToUser extends Page implements HasForms
{
    use InteractsWithForms;

    protected static string $resource = FcmNotificationTemplateResource::class;

    protected static string $view = 'filament.resources.fcm-notification-template-resource.pages.send-template-to-user';

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                Section::make('Template')
                    ->schema([
                        Select::make('Template')
                            ->options(FcmNotificationTemplate::all()->pluck('name', 'id'))
                            ->live()
                            ->afterStateUpdated(function (Select $component) {
                                dd('here');
                                return $component
                                    ->getContainer()
                                    ->getComponent('dynamicVariableFields')
                                    ->getChildComponentContainer()
                                    ->fill();
                            }),
                        Select::make('User')
                            ->options(User::all()->pluck('name', 'id'))
                            ->searchable()
                    ]),
                Section::make('Variables')
                    ->schema(function (Get $get) {
                        $templateName = $get('Template');
                        if(!$templateName) return [];
                        $template = FcmNotificationTemplate::find($get('Template'));
                        dd($template);
                        return [
                          TextInput::make('title')
                          ->default($template->title),
                        ];
//                        return collect($template-)->map(function ($variable) {
//                            return TextInput::make($variable);
//                        });
                    })->key('dynamicVariableFields'),
                TextInput::make('title')
                    ->required(),
                MarkdownEditor::make('content'),
                // ...
            ])
            ->statePath('data');
    }
}