class_docstr: Parallel RL learning environments.
class_docstr_tok: ["Parallel","RL","learning","environments","."]
docstr: Reset envs.
  
  Args:
      mask (Sequence of bool): Mask array that specifies which env to
          skip. If omitted, all the envs are reset.
docstr_tok: ["Reset","envs",".","Args",":","mask","(","Sequence","of","bool",")",":","Mask","array","that","specifies","which","env","to","skip",".","If","omitted",",","all","the","envs","are","reset","."]
code: def reset(self, mask):
      """Reset envs.
  
      Args:
          mask (Sequence of bool): Mask array that specifies which env to
              skip. If omitted, all the envs are reset.
      """
      raise NotImplementedError()
  
file_path: chainerrl/chainerrl/env.py
imports: from abc import ABCMeta
  from abc import abstractmethod
label_desc: Use image node_id 2 for calling the VectorEnv obj's underlying member method code with example usage: obj.reset(mask) without return types