class_docstr: Save collection of render frames.
docstr: Perform a step in the base environment and collect a frame.
docstr_tok: ["Perform","a","step","in","the","base","environment","and","collect","a","frame","."]
code: def step(self, *args, **kwargs):
      """Perform a step in the base environment and collect a frame."""
      output = self.env.step(*args, **kwargs)
      self.frame_list.append(self.env.render())
      return output
  
imports: import gym
label_desc: Use image node_id 3 for calling the RenderCollection obj's underlying member method code with example usage: obj.step() and returns: output