code: def __call__(self, prompt=""):
      self.turn += 1
      if self.turn <= self.max_turns:
          return f"Turn {self.turn}"
  
      self.turn = 0
      self.episode += 1
      if self.episode <= self.max_episodes:
          return "[DONE]"
      elif self.clean_exit:
          return "[EXIT]"
      else:
          raise EOFError
  
imports: import unittest
  from unittest import mock
  import os
  from parlai.scripts.interactive import Interactive
  from parlai.scripts.safe_interactive import SafeInteractive
  import parlai.utils.conversations
  import parlai.utils.testing
label_desc: Use image node_id 2 for calling the FakeInput obj's underlying member method code with example usage: obj.__call__(prompt) and returns: str, self, str, str