using ctx.UserData to store summary github.com/elazarl/goproxy/blob/2592e75ae0/examples/goproxy-httpdump/httpdump.go#L254 and counting bytes via a wrapped read-writer github.com/elazarl/goproxy/blob/2592e75ae0/examples/goproxy-stats/main.go#L61
(req *http.Request, ctx *tx.ProxyCtx)
source not stored for this graph (policy: none)
nothing calls this directly
no test coverage detected