class_docstr: A wrapper for running commands in ray ci docker container
code: def __init__(
      self, docker_tag: str, envs: Optional[List[str]] = None
  ) -> None:
      self.docker_tag = docker_tag
      self.envs = envs or []
      self.envs += _DOCKER_ENV
  
file_path: ray/ci/ray_ci/container.py
imports: import abc
  import os
  import subprocess
  import sys
  from typing import List, Tuple, Optional
label_desc: Use image node_id 1 to create a new Container object from inherited base classes: abc with example: obj = Container(docker_tag, envs)