class_docstr: Holds structured spaces records (i.e., raw actions and observations recorded during a rollout). 
docstr: Convenience method for checking whether the end of this trajectory represents also the end of an episode.
docstr_tok: ["Convenience","method","for","checking","whether","the","end","of","this","trajectory","represents","also","the","end","of","an","episode","."]
code: def is_done(self) -> bool:
      """Convenience method for checking whether the end of this trajectory represents also the end of an episode."""
      if len(self) == 0:
          return False
  
      assert not self.step_records[
          -1
      ].is_batched(), (
          "cannot determine done state for batched trajectory."
      )
      return self.step_records[-1].is_done()
  
imports: from typing import List, Optional, Any, TypeVar, Generic, Dict, Union
  import numpy
  from maze.core.env.action_conversion import ActionType, TorchActionType
  from maze.core.rendering.renderer import Renderer
  from maze.core.trajectory_recording.records.state_record import StateRecord
  from maze.core.trajectory_recording.records.structured_spaces_record import StructuredSpacesRecord, StepKeyType
label_desc: Use image node_id 5 for calling the SpacesTrajectoryRecord obj's underlying member method code with example usage: obj.is_done() and returns: self, False