custom Uber-trace-Id ?

[chuckchann]

Does opentracing-go provide the function of customizing Uber-trace-Id？i want to use x-request-id (generated by Nginx) as trace id, instead of using Uber-trace-Id. In fact, I like to use x-request-id as the search criteria instead of Uber-trace-Id (in jaeger UI).
look forward to your reply.

thanks in advance and