code: def _python_executable():
      """Return the real path for the Python executable, if it exists.
  
      Return RuntimeEnvironmentError otherwise.
  
      Returns:
          (str): The real path of the current Python executable.
      """
      if not sys.executable:
          raise RuntimeEnvironmentError(
              "Failed to retrieve the path for the Python executable binary"
          )
      return sys.executable
  
imports: from __future__ import absolute_import
  import logging
  import sys
  import shlex
  import os
  import subprocess
  import time
  import dataclasses
  import json
label_desc: Use image node_id 7 for calling a global function with example usage: _python_executable() and returns: sys