private AggregatedHttpResponse setCommonHeaders(AggregatedHttpResponse res) {
        return AggregatedHttpResponse.of(res.informationals(),
                                         setCommonHeaders(res.headers()),
                                         res.content(),
                                         res.trailers().toBuilder()
                                            .removeAndThen(ARMERIA_LPHC)
                                            .build());
    }
Returns a new builder which builds a new {@link HealthCheckService}.
core/src/main/java/com/linecorp/armeria/server/healthcheck/HealthCheckService.java