code: def setup_method(self):
      self.env = PointEnv()
      obs, _ = self.env.reset()
      self.base_len = len(obs)
      self.n_total_tasks = 5
      self.task_index = 1
      self.wrapped = TaskOnehotWrapper(
          self.env, self.task_index, self.n_total_tasks
      )
  
file_path: garage/tests/garage/envs/test_task_onehot_wrapper.py
imports: import numpy
  from garage.envs import PointEnv, TaskOnehotWrapper
label_desc: Use image node_id 1 for calling the TestSingleWrappedEnv obj's underlying member method code with example usage: obj.setup_method() without return types