hostname                    localhost
pid                         12345
req@id                      6789
req@method                  GET
req@path                    api/check
req@host                    foo.bar
req@headers@host            bar.baz
req@headers@user-agent      browser
res@status_code             200
res@header@content-type     text
res@header@content-encoding plain
empty1                      {}
empty2                      []
wrapper@empty3              {}
wrapper@emtpy4              []
