Tempfile#open

# File tmp/rubies/ruby-4.0.0/lib/tempfile.rb, line 257
def open
  _close

  mode = @mode & ~(File::CREAT|File::EXCL)
  __setobj__(File.open(__getobj__.path, mode, **@opts))

  @finalizer_manager.register(self, __getobj__)

  __getobj__
end