There is a function Got1xxResponse in ClientTrace that returns error. In the function compose, the return value of Got1xxResponse will be ignored. Is this intentional or a bug? If it is not a bug, whether it should be explained in the comment.

		newFunc := reflect.MakeFunc(hookType, func(args []reflect.Value) []reflect.Value {
			tfCopy.Call(args)
			return of.Call(args)
		})