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              []