code: def observation(self, t):
      return tf.constant(
          [[1.0, 2.0, 3.0], [0.0, 4.0, 5.0]], dtype=tf.float32
      ) + tf.reshape(tf.cast(t, dtype=tf.float32), [1, 1])
  
file_path: agents/tf_agents/bandits/environments/non_stationary_stochastic_environment_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  import tensorflow_probability
  from tf_agents.bandits.environments import non_stationary_stochastic_environment
  from tf_agents.specs import tensor_spec
label_desc: Use image node_id 4 for calling the DummyDynamics obj's underlying member method code with example usage: obj.observation(t) and returns: unknown