code: def iev_document_sampler_creator(env_ctx):
      return iev.UtilityModelVideoSampler(
          doc_ctor=iev.IEvVideo, seed=env_ctx["seed"]
      )
  
file_path: ray/rllib_contrib/slate_q/src/rllib_slate_q/env/recommender_system_envs_with_recsim.py
imports: from recsim import choice_model
  from recsim.environments import interest_evolution
  from recsim.environments import interest_exploration
  from recsim.environments import long_term_satisfaction
  from ray.rllib.env.wrappers.recsim import make_recsim_env
  from ray.tune import register_env
label_desc: Use image node_id 6 for calling a global function with example usage: iev_document_sampler_creator(env_ctx) and returns: iev