diff --git a/find.js b/find.js
new file mode 100644
index 00000000..695558b4
--- /dev/null
+++ b/find.js
@@ -0,0 +1,23 @@
+import fs from 'fs';
+
+const files = fs.readdirSync('lib/', {
+    recursive: true
+});
+
+const q = process.argv[2];
+
+var total = 0;
+
+for (const f of files) {
+    try {
+        const b = fs.readFileSync(`lib/${f}`, 'utf-8');
+        if (b.includes(q) || f.includes(q)) {
+            total ++;
+            console.log(f);
+        }
+    } catch (error) {
+        
+    }
+}
+
+console.log(`${total} files in total`);
\ No newline at end of file
diff --git a/lib/src/thread.dart b/lib/src/thread.dart
new file mode 100644
index 00000000..ed9f8216
--- /dev/null
+++ b/lib/src/thread.dart
@@ -0,0 +1,27 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:math';
+
+import 'package:async/async.dart';
+import 'package:collection/collection.dart';
+import 'package:html_unescape/html_unescape.dart';
+
+import 'package:matrix/matrix.dart';
+import 'package:matrix/src/models/timeline_chunk.dart';
+import 'package:matrix/src/utils/cached_stream_controller.dart';
+import 'package:matrix/src/utils/file_send_request_credentials.dart';
+import 'package:matrix/src/utils/markdown.dart';
+import 'package:matrix/src/utils/marked_unread.dart';
+import 'package:matrix/src/utils/space_child.dart';
+
+class Thread {
+  final Room room;
+  final String threadRootId;
+
+  Thread({
+    required Room this.room,
+    required String this.threadRootId
+  }) {
+
+  }
+}
\ No newline at end of file