nodejs
diff --git a/‎lib/internal/fs/promises.js‎
Lines changed: 6 additions & 0 deletions b/‎lib/internal/fs/promises.js‎
Lines changed: 6 additions & 0 deletions
@@ -182,6 +182,12 @@ function handleErrorFromBinding(error) {
 }
 
 class FileHandle extends EventEmitter {
+  #brandCheck = undefined;
+
+  static isFileHandle(value) {
+    return (value != null && typeof value === 'object' && #brandCheck in value);
+  }
+
   /**
    * @param {InternalFSBinding.FileHandle | undefined} filehandle
    */