class_docstr: An agent implementing the EXP3 bandit algorithm.
  
  Implementation based on
  
  "Bandit Algorithms"
    Lattimore and Szepesvari, 2019
    https://tor-lattimore.com/downloads/book/book.pdf
class_docstr_tok: ["An","agent","implementing","the","EXP3","bandit","algorithm",".","Implementation","based","on","''","Bandit","Algorithms","''","Lattimore","and","Szepesvari",",","2019","https",":","\/\/tor-lattimore.com\/downloads\/book\/book.pdf"]
code: def weights(self):
      return tf.identity(self._weights)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from typing import Optional, Text
  import gin
  import tensorflow
  from tf_agents.agents import data_converter
  from tf_agents.agents import tf_agent
  from tf_agents.bandits.policies import categorical_policy
  from tf_agents.policies import utils
  from tf_agents.trajectories import policy_step
  from tf_agents.typing import types
  from tf_agents.utils import common
label_desc: Use image node_id 3 for calling the Exp3Agent obj's underlying member method code with example usage: obj.weights() and returns: tf