class_docstr: A context manager. Wraps subprocess. Popen to capture output safely.
class_docstr_tok: ["A","context","manager",".","Wraps","subprocess",".","Popen","to","capture","output","safely","."]
code: def __enter__(self):
      self.start()
      return self
  
imports: from __future__ import annotations
  import hashlib
  import os
  import re
  import shlex
  import shutil
  import socket
  import subprocess
  import sys
  import time
  from io import BytesIO
  from pathlib import Path
  from random import randint
  from tempfile import TemporaryFile
  from types import ModuleType
  from typing import Any, Dict, Generator, List, Literal, Protocol, Tuple
  from urllib import parse
  import pytest
  import requests
  from PIL import Image
  from playwright.sync_api import ElementHandle, Locator, Page
  from pytest import FixtureRequest
label_desc: Use image node_id 3 for calling the AsyncSubprocess obj's underlying member method code with example usage: obj.__enter__() and returns: self