class_docstr: Environment wrapper for OpenSpiel RL environments.
class_docstr_tok: ["Environment","wrapper","for","OpenSpiel","RL","environments","."]
code: def reward_spec(self) -> specs.BoundedArray:
      return specs.BoundedArray(
          (),
          np.float32,
          minimum=self._environment.game.min_utility(),
          maximum=self._environment.game.max_utility(),
      )
  
imports: from typing import List, NamedTuple
  from acme import specs
  from acme import types
  import dm_env
  import numpy
  from open_spiel.python import rl_environment
label_desc: Use image node_id 7 for calling the OpenSpielWrapper obj's underlying member method code with example usage: obj.reward_spec() and returns: specs