class_docstr: A conversational dialog chat bot.
docstr: Returns the latest response in a conversation if it exists.
  Returns None if a matching conversation cannot be found.
code: def get_latest_response(self, conversation):
      """
      Returns the latest response in a conversation if it exists.
      Returns None if a matching conversation cannot be found.
      """
      from chatterbot.conversation import Statement as StatementObject
  
      conversation_statements = list(
          self.storage.filter(
              conversation=conversation, order_by=["id"]
          )
      )
  
      # Get the most recent statement in the conversation if one exists
      latest_statement = (
          conversation_statements[-1]
          if conversation_statements
          else None
      )
  
      if latest_statement:
          if latest_statement.in_response_to:
              response_statements = list(
                  self.storage.filter(
                      conversation=conversation,
                      text=latest_statement.in_response_to,
                      order_by=["id"],
                  )
              )
  
              if response_statements:
                  return response_statements[-1]
              else:
                  return StatementObject(
                      text=latest_statement.in_response_to,
                      conversation=conversation,
                  )
          else:
              # The case that the latest statement is not in response to another statement
              return latest_statement
  
      return None
  
file_path: ChatterBot/chatterbot/chatterbot.py
imports: import logging
  from chatterbot.storage import StorageAdapter
  from chatterbot.logic import LogicAdapter
  from chatterbot.search import TextSearch, IndexedTextSearch
  from chatterbot import utils
label_desc: Use image node_id 5 for calling the ChatBot obj's underlying member method code with example usage: obj.get_latest_response(conversation) and returns: None, latest_statement, response_statements, StatementObject