global

def memoized_info(index, b, verbose)
  frame_manager.user[:frame_info] ||= Hash.new { |h, k| h[k] = [] }
  if verbose
    frame_manager.user[:frame_info][:v][index]      ||= frame_info(b, verbose)
  else
    frame_manager.user[:frame_info][:normal][index] ||= frame_info(b, verbose)
  end
end