code: def __getattribute__(self, name):
      print(
          r"""[bold red]Missing dependency:[/bold red] You are trying to use Norfair's video features. However, OpenCV is not installed.
  
  Please, make sure there is an existing installation of OpenCV or install Norfair with `pip install norfair\[video]`."""
      )
      exit()
  
file_path: norfair/norfair/utils.py
imports: import os
  from functools import lru_cache
  from logging import warn
  from typing import Sequence, Tuple
  import numpy
  from rich import print
  from rich.console import Console
  from rich.table import Table
label_desc: Use image node_id 1 for calling the DummyOpenCVImport obj's underlying member method code with example usage: obj.__getattribute__(name) without return types