DefaultIsStatusCodeAnError defines a function that says whether a given request is an error based on a code.

Middleware returns a http.Handler middleware that writes inbound requests to /debug/request.

Tripperware returns a piece of client-side Tripperware that puts requests on the `/debug/requests` page.

WithFilterFunc customizes the function used for deciding whether a given call is traced or not.

WithIsStatusCodeAnError customizes the function used for deciding whether a given call was an error.

FilterFunc allows users to provide a function that filters out certain methods from being traced.

IsStatusCodeAnErrorFunc allows the customization of which requests are considered errors in the tracing system.