code: def extract_remote_user_pwd_host_repo(
      path: str,
  ) -> Tuple[Optional[str], Optional[str], Optional[str], str]:
      """
      Utility function to extract user, password, host and remote repo path from given remote path.
      Arg path should follow the following format: 'ssh://[user:password@][host]:remote_repo_path'
      Falls back to environment variables if some of the extractables are missing
      """
      assert path.startswith("ssh://")
      # strip the 'ssh://' prefix
      path = path[6:]
  
      # split user:password and host:remote_repo_path pairs
      initial_split = path.split("@", maxsplit=1)
  
      user = None
      password = None
      host = None
  
      if len(initial_split) == 1:
          user_pwd_split = None
          host_path_split = initial_split[0].split(":", maxsplit=1)
      else:
          host_path_split = initial_split[1].split(":", maxsplit=1)
          user_pwd_split = initial_split[0].split(":", maxsplit=1)
  
      # split user and password
      if user_pwd_split:
          user = user_pwd_split[0]
          if len(user_pwd_split) > 1:
              password = user_pwd_split[1]
  
      # split host and remote path
      if len(host_path_split) == 1:
          remote_path = host_path_split[0]
      else:
          host = host_path_split[0]
          remote_path = host_path_split[1]
  
      # fallback to env variables
      if not user and os.environ.get("AIM_REMOTE_REPO_USER"):
          user = os.environ.get("AIM_REMOTE_REPO_USER")
      if not password and os.environ.get("AIM_REMOTE_REPO_PASSWORD"):
          password = os.environ.get("AIM_REMOTE_REPO_PASSWORD")
      if not host and os.environ.get("AIM_REMOTE_REPO_HOST"):
          host = os.environ.get("AIM_REMOTE_REPO_HOST")
  
      return user, password, host, remote_path
  
file_path: aim/aim/ext/sshfs/utils.py
imports: import os
  import platform
  import shutil
  import subprocess
  import time
  import logging
  from typing import Optional, Tuple
label_desc: Use image node_id 4 for calling a global function with example usage: extract_remote_user_pwd_host_repo(path) and returns: user,  password,  host,  remote_path