code: def symlog(x: "tf.Tensor") -> "tf.Tensor":
      """The symlog function as described in [1]:
  
      [1] Mastering Diverse Domains through World Models - 2023
      D. Hafner, J. Pasukonis, J. Ba, T. Lillicrap
      https://arxiv.org/pdf/2301.04104v1.pdf
      """
      return tf.math.sign(x) * tf.math.log(tf.math.abs(x) + 1)
  
imports: import logging
  from typing import Any, Callable, List, Optional, Type, TYPE_CHECKING, Union
  import gymnasium
  import numpy
  import tree
  from gymnasium.spaces import Discrete, MultiDiscrete
  from ray.rllib.utils.annotations import PublicAPI, DeveloperAPI
  from ray.rllib.utils.framework import try_import_tf
  from ray.rllib.utils.spaces.space_utils import get_base_struct_from_space
  from ray.rllib.utils.typing import LocalOptimizer, ModelGradients, PartialAlgorithmConfigDict, SpaceStruct, TensorStructType, TensorType
label_desc: Use image node_id 14 for calling a global function with example usage: symlog(x) and returns: unknown