diff --git a/inc/Service/Media/MediaHandler.php b/inc/Service/Media/MediaHandler.php
index cf61ffce..1abb1d4f 100644
--- a/inc/Service/Media/MediaHandler.php
+++ b/inc/Service/Media/MediaHandler.php
@@ -27,6 +27,17 @@ interface MediaHandler {
 
 	public function openHandle(string $file_path, string $file_mime, int $file_kind): mixed;
 
+	public function closeHandle(mixed $handle);
+
+	public function installMediaAndGenerateThumb(
+		mixed $handle,
+		string $media_preferred_out_file_path,
+		string $thumb_preferred_out_file_path,
+		string $thumb_preferred_out_mime,
+		int $thumb_max_width,
+		int $thumb_max_height
+	);
+
 	/**
 	 * Generates a thumbnail from the given file.
 	 *