docs: def _init():
      """Initialize the furious context and registry.
  
      NOTE: Do not directly run this method.
      """
      # If there is a context and it is initialized to this request,
      # return, otherwise reinitialize the _local_context.
      if (hasattr(_local_context, '_initialized') and
              _local_context._initialized == os.environ.get('REQUEST_ID_HASH')):
          return
  
      # Used to track the context object stack.
      _local_context.registry = []
  
      # Used to provide easy access to the currently running Async job.
      _local_context._executing_async_context = None
      _local_context._executing_async = []
  
      # So that we do not inadvertently reinitialize the local context.
      _local_context._initialized = os.environ.get('REQUEST_ID_HASH')
  
      return _local_context