WP_REST_Autosaves_Controller::get_item( WP_REST_Request $request ): WP_Post|WP_Error

267	public function get_item( $request ) {268		$parent_id = (int) $request->get_param( 'parent' );269 270		if ( $parent_id <= 0 ) {271			return new WP_Error(272				'rest_post_invalid_id',273				__( 'Invalid post parent ID.' ),274				array( 'status' => 404 )275			);276		}277 278		$autosave = wp_get_post_autosave( $parent_id );279 280		if ( ! $autosave ) {281			return new WP_Error(282				'rest_post_no_autosave',283				__( 'There is no autosave revision for this post.' ),284				array( 'status' => 404 )285			);286		}287 288		$response = $this->prepare_item_for_response( $autosave, $request );289		return $response;290	}