code: def test_visualization(self):
      env = PointEnv()
      assert env.render_modes == ["ascii"]
      env.reset()
      assert (
          env.render("ascii")
          == f"Point: {env._point}, Goal: {env._goal}"
      )
  
      env.visualize()
      env.step(env.action_space.sample())
  
file_path: garage/tests/garage/envs/test_point_env.py
imports: import pickle
  import numpy
  import pytest
  from garage.envs.point_env import PointEnv
label_desc: Use image node_id 7 for calling the TestPointEnv obj's underlying member method code with example usage: obj.test_visualization() without return types