code: def _is_tracing_enabled():
      global _ENABLE_TRACING
      if _ENABLE_TRACING is None:
          if (
              env_setting := os.environ.get("FATE_ENABLE_TRACING")
          ) is not None:
              _ENABLE_TRACING = bool(env_setting)
          else:
              _ENABLE_TRACING = _ENABLE_TRACING_DEFAULT
      return _ENABLE_TRACING
  
imports: import functools
  import logging
  import os
  import time
  import typing
  from typing import List
  from opentelemetry import trace, context
label_desc: Use image node_id 1 for calling a global function with example usage: _is_tracing_enabled() and returns: _ENABLE_TRACING