如何使用我的插件将 post 添加到 RainLab.Blog?

How can I add a post to RainLab.Blog using my plugin?

我想从 RSS 提要中获取信息并将其传输到 RainLab.Blog。 我已经创建了自己的插件 我不明白如何触发 RainLab.Blog

的动作
$AllCategories = 2; // category id
$post = new Post();
$post->title = 'testSetPost';
$post->slug = 'testSetPost';
$post->content = '<h1>TEST SET POST</h1>';
$post->excerpt = '<h6>TEST SET POST</h6>';
$post->published_at = '2021-02-05 15:14:23';
$post->published = true;
$post->save();

$post->categories()->attach($AllCategories);

$file = new File;
$file->fromUrl('https://picsum.photos/500/320/?random=1','test-set-post' . '.jpg');
        
$post->featured_images()->save($file);