You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: option.go
    path of file: ./repos/iris/x/client
    
    the code of the file until where you have to start completion: package client

import (
	"context"
	"net/http"
	"net/http/httputil"
	"time"

	"github.com/kataras/golog"
	"golang.org/x/time/rate"
)

// All the builtin client options should live here, for easy discovery.

type Option = func(*Client)

// BaseURL registers the base URL of this client.
// All of its methods
    
func (h *debugRequestHandler) EndRequest(ctx context.Context, resp *http.Response, err error) error {
	if err != nil {
		h.logger.Debugf("%s: %s: ERR: %s", resp.Request.Method, resp.Request.URL.String(), err.Error())
	} else {
		dump, err := httputil.DumpResponse(resp, true)
		if err != nil {
			return err
		}

		h.logger.Debug(string(dump))
	}

	return err
}