code: def _get_obs(self):
      obs = [0] * self.size
      if self.step_num < len(self.state):
          obs[self.state[self.step_num]] = 1
      return np.array(obs, dtype=np.float32)
  
file_path: tinygrad/examples/rl/lightupbutton.py
imports: import gymnasium
  import numpy
  from gymnasium.envs.registration import register
label_desc: Use image node_id 2 for calling the PressTheLightUpButton obj's underlying member method code with example usage: obj._get_obs() and returns: np