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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def retrieve_agent_profile(self, agent, profile_id):
 """Retrieve agent profile with the specified parameters :param agent: Agent object of the desired agent profile :type agent: :class:`tincan.agent.Agent` :param profile_id: UUID of the desired agent profile :type profile_id: str | unicode :return: LRS Response object with an agent profile doc as content :rtype: :class:`tincan.lrs_response.LRSResponse` """

        if not isinstance(agent, Agent):
            agent = Agent(agent)

        request = HTTPRequest(
            method="GET",
            resource="agents/profile",
            ignore404=True
        )
        request.query_params = {
            "profileId": profile_id,
            "agent": agent.to_json(self.version)
        }

        lrs_response = self._send_request(request)

        if lrs_response.success:
            doc = AgentProfileDocument(
                id=profile_id,
                content=lrs_response.data,
                agent=agent
            )
            headers = lrs_response.response.getheaders()
            if "lastModified" in headers and headers["lastModified"] is not None:
                doc.timestamp = headers["lastModified"]
            if "contentType" in headers and headers["contentType"] is not None:
                doc.content_type = headers["contentType"]
            if "etag" in headers and headers["etag"] is not None:
                doc.etag = headers["etag"]

            lrs_response.content = doc

        return lrs_response