code: def get_sensitive_variables_fields():
      """Get comma-separated sensitive Variable Fields from airflow.cfg."""
      from airflow.configuration import conf
  
      sensitive_fields = DEFAULT_SENSITIVE_FIELDS.copy()
      sensitive_variable_fields = conf.get(
          "core", "sensitive_var_conn_names"
      )
      if sensitive_variable_fields:
          sensitive_fields |= frozenset(
              {
                  field.strip()
                  for field in sensitive_variable_fields.split(",")
              }
          )
      return sensitive_fields
  
imports: from __future__ import annotations
  import collections.abc
  import logging
  import sys
  from enum import Enum
  from functools import cached_property
  from typing import TYPE_CHECKING, Any, Callable, Dict, Generator, Iterable, Iterator, List, Pattern, TextIO, Tuple, TypeVar, Union
  import re2
  from airflow import settings
  from airflow.compat.functools import cache
label_desc: Use image node_id 1 for calling a global function with example usage: get_sensitive_variables_fields() and returns: sensitive_fields