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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 show(self, application_id, host_id):
 """ This API endpoint returns a single application host, identified by its ID. :type application_id: int :param application_id: Application ID :type host_id: int :param host_id: Application host ID :rtype: dict :return: The JSON response of the API :: { "application_host": { "id": "integer", "application_name": "string", "host": "string", "language": "integer", "health_status": "string", "application_summary": { "response_time": "float", "throughput": "float", "error_rate": "float", "apdex_score": "float" }, "end_user_summary": { "response_time": "float", "throughput": "float", "apdex_score": "float" }, "links": { "application": "integer", "application_instances": [ "integer" ], "server": "integer" } } } """

        return self._get(
            url='{root}applications/{application_id}/hosts/{host_id}.json'.format(
                root=self.URL,
                application_id=application_id,
                host_id=host_id
            ),
            headers=self.headers,
        )