code: def _get_pip_version():
      """
      Returns:
          The version of ``pip`` that is installed in the current environment,
          or ``None`` if ``pip`` is not currently installed / does not have a
          ``__version__`` attribute.
      """
      try:
          import pip
  
          return pip.__version__
      except ImportError:
          return None
  
imports: import logging
  import os
  import re
  import subprocess
  import sys
  import tempfile
  import yaml
  from packaging.requirements import InvalidRequirement, Requirement
  from packaging.version import Version
  from mlflow.environment_variables import _MLFLOW_TESTING
  from mlflow.exceptions import MlflowException
  from mlflow.protos.databricks_pb2 import INVALID_PARAMETER_VALUE
  from mlflow.utils import PYTHON_VERSION, insecure_hash
  from mlflow.utils.process import _exec_cmd
  from mlflow.utils.requirements_utils import _infer_requirements, _parse_requirements
  from mlflow.version import VERSION
label_desc: Use image node_id 2 for calling a global function with example usage: _get_pip_version() and returns: pip, None