@Override
    public ClientRequestContextBuilder requestStartTime(long requestStartTimeNanos,
                                                        long requestStartTimeMicros) {
        return (ClientRequestContextBuilder) super.requestStartTime(requestStartTimeNanos,
                                                                    requestStartTimeMicros);
    }
Returns a new {@link ClientRequestContext} created with the properties of this builder.
core/src/main/java/com/linecorp/armeria/client/ClientRequestContextBuilder.java