core/file.rbs in rbs-1.0.0.pre vs core/file.rbs in rbs-1.0.0.pre2

@@ -529,9 +529,12 @@
   #
   #     File.mtime("testfile")   #=> Tue Apr 08 12:58:04 CDT 2003
   #
   def self.mtime: (string | _ToPath | IO file_name) -> Time
 
+  # Alias of `File.new`.
+  def self.open: (string | _ToPath | int file_name, ?(string | int) mode, ?int perm) -> instance
+
   # Returns `true` if the named file exists and the effective used id of the
   # calling process is the owner of the file.
   #
   # *file_name* can be an IO object.
   #