code: def get_ppo_batch_for_env(env: Union[str, gym.Env], batch_size):
      """Create a dummy sample batch for the given environment.
  
      Args:
          env: The environment to create a sample batch for. If a string is given,
          it is assumed to be a gym environment ID.
          batch_size: The batch size to use.
  
      Returns:
          A sample batch for the given environment.
      """
      env.reset()
      action = env.action_space.sample()
      if type(env.action_space) is gym.spaces.Box:
          action_inputs = [0.5, 0.5]
      else:
          action_inputs = [0.5]
      obs, reward, truncated, terminated, info = env.step(action)
  
      def batchify(x):
          x = np.array(x)
          return np.repeat(x[np.newaxis], batch_size, axis=0)
  
      # Fake CartPole episode of n time steps.
      return SampleBatch(
          {
              SampleBatch.OBS: batchify(obs),
              SampleBatch.NEXT_OBS: batchify(obs),
              SampleBatch.ACTIONS: batchify([action]),
              SampleBatch.PREV_ACTIONS: batchify([action]),
              SampleBatch.REWARDS: batchify([reward]),
              SampleBatch.PREV_REWARDS: batchify([reward]),
              SampleBatch.TERMINATEDS: batchify([terminated]),
              SampleBatch.TRUNCATEDS: batchify([truncated]),
              SampleBatch.VF_PREDS: batchify(0.0),
              SampleBatch.ACTION_DIST_INPUTS: batchify(action_inputs),
              SampleBatch.ACTION_LOGP: batchify(0.0),
              SampleBatch.EPS_ID: batchify(0),
              "advantages": batchify(0.0),
              "value_targets": batchify(0.0),
              SampleBatch.AGENT_INDEX: batchify(0),
          }
      )
  
file_path: ray/rllib/benchmarks/torch_compile/utils.py
imports: from typing import Union
  import numpy
  import gymnasium
  import time
  import torch
  from ray.rllib.policy.sample_batch import SampleBatch
label_desc: Use image node_id 1 for calling a global function with example usage: get_ppo_batch_for_env(env, batch_size) and returns: SampleBatch, np