class_docstr: Audio type returned by the agent.
class_docstr_tok: ["Audio","type","returned","by","the","agent","."]
docstr: Returns the stringified version of that object. In the case of an AgentAudio, it is a path to the serialized
  version of the audio.
docstr_tok: ["Returns","the","stringified","version","of","that","object",".","In","the","case","of","an","AgentAudio",",","it","is","a","path","to","the","serialized","version","of","the","audio","."]
code: def to_string(self):
      """
      Returns the stringified version of that object. In the case of an AgentAudio, it is a path to the serialized
      version of the audio.
      """
      if self._path is not None:
          return self._path
  
      if self._tensor is not None:
          directory = tempfile.mkdtemp()
          self._path = os.path.join(
              directory, str(uuid.uuid4()) + ".wav"
          )
          sf.write(self._path, self._tensor, samplerate=self.samplerate)
          return self._path
  
imports: import os
  import pathlib
  import tempfile
  import uuid
  import numpy
  from ..utils import is_soundfile_availble, is_torch_available, is_vision_available, logging
label_desc: Use image node_id 4 for calling the AgentAudio obj's underlying member method code with example usage: obj.to_string() and returns: self, self