text: """Empty init file to ensure documentation for multi-agent envs is created."""
  
  from flow.multiagent_envs.multiagent_env import MultiEnv
  from flow.multiagent_envs.loop.wave_attenuation import \
      MultiWaveAttenuationPOEnv
  from flow.multiagent_envs.loop.loop_accel import MultiAgentAccelEnv
  from flow.multiagent_envs.traffic_light_grid import MultiTrafficLightGridPOEnv
  from flow.multiagent_envs.highway import MultiAgentHighwayPOEnv
  
  __all__ = ['MultiEnv', 'MultiAgentAccelEnv', 'MultiWaveAttenuationPOEnv',
             'MultiTrafficLightGridPOEnv', 'MultiAgentHighwayPOEnv']
  