func WithContext(parent context.Context, req *http.Request) context.Context {
	return internal.WithContext(parent, req)
}
func WithContext(parent context.Context, req *http.Request) context.Context {
	return internal.WithContext(parent, req)
}
func WithContext ( parent context . Context , req * http . Request ) context . Context { return internal . WithContext ( parent , req ) }
// WithContext returns a copy of the parent context
// and associates it with an in-flight HTTP request.
// This function is cheap.
WithContext returns a copy of the parent context and associates it with an in - flight HTTP request . This function is cheap .