Set 2 custom headers through transport (roundTripper) and get the response

[rulisastra]

Problem statement

Hello, I had this intention to sent X-Amzn-Trace-Id into the Backend through the header request. I see that we can use a custom header by manipulating the transport in the facade.tmpl

my question is... is there any simple way to get the response from 2 or more custom headers through the transport in facade.gotmpl?

because when I want to get the response header the client cannot ignore the empty header because the roundTripper.

Thanks!