class_docstr: Mujoco's reacher environment.
class_docstr_tok: ["Mujoco","'s","reacher","environment","."]
code: def target_modality(self):
      return modalities.ModalityType.VIDEO
  
file_path: tensor2tensor/tensor2tensor/envs/mujoco_problems.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import functools
  from tensor2tensor.envs import rendered_env_problem
  from tensor2tensor.layers import modalities
  from tensor2tensor.rl import gym_utils
  from tensor2tensor.utils import registry
label_desc: Use image node_id 3 for calling the ReacherEnvProblem obj's underlying member method code with example usage: obj.target_modality() and returns: modalities