<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def conversations(self):
 """ Get the conversation topics for an input targeting criteria """

        body = {
            "conversation_type": self.conversation_type,
            "audience_definition": self.audience_definition,
            "targeting_inputs": self.targeting_inputs
        }
        return self.__get(account=self.account, client=self.account.client, params=json.dumps(body))