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: logger.go
    path of file: ./repos/ko/vendor/github.com/google/go-containerregistry/pkg/v1/remote/transport
    
    the code of the file until where you have to start completion: // Copyright 2020 Google LLC All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package transport

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

	"github.com/google/go-containerregistry/internal/redact"
	"github.com/google/go-containerregistry/pkg/logs"
)

type logTransport struct {
	inner http.RoundTripper
}

// NewLogger returns a transport that logs requests and responses to
// github.com/google/go-containerregistry/pkg/logs.Debug.
func NewLogger(inner http.RoundTripper) http.RoundTripper {
	return &logTransport{inner}
}

func (t *logTransport) RoundTrip(in *http.Request) (out *http.Response, err error) {
	// Inspired by: github.com/motemen/go-loghtt
    
func (t *logTransport) RoundTrip(in *http.Request) (out *http.Response, err error) {
	// Inspired by: github.com/motemen/go-loghttp

	// We redact token responses and binary blobs in response/request.
	omitBody, reason := redact.FromContext(in.Context())
	if omitBody {
		logs.Debug.Printf("--> %s %s [body redacted: %s]", in.Method, in.URL, reason)
	} else {
		logs.Debug.Printf("--> %s %s", in.Method, in.URL)
	}

	// Save these headers so we can redact Authorization.
	savedHeaders := in.Header.Clone()
	if in.Header != nil && in.Header.Get("authorization") != "" {
		in.Header.Set("authorization", "<redacted>")
	}

	b, err := httputil.DumpRequestOut(in, !omitBody)
	if err == nil {
		logs.Debug.Println(string(b))
	} else {
		logs.Debug.Printf("Failed to dump request %s %s: %v", in.Method, in.URL, err)
	}

	// Restore the non-redacted headers.
	in.Header = savedHeaders

	start := time.Now()
	out, err = t.inner.RoundTrip(in)
	duration := time.Since(start)
	if err != nil {
		logs.Debug.Printf("<-- %v %s %s (%s)", err, in.Method, in.URL, duration)
	}
	if out != nil {
		msg := fmt.Sprintf("<-- %d", out.StatusCode)
		if out.Request != nil {
			msg = fmt.Sprintf("%s %s", msg, out.Request.URL)
		}
		msg = fmt.Sprintf("%s (%s)", msg, duration)

		if omitBody {
			msg = fmt.Sprintf("%s [body redacted: %s]", msg, reason)
		}

		logs.Debug.Print(msg)

		b, err := httputil.DumpResponse(out, !omitBody)
		if err == nil {
			logs.Debug.Println(string(b))
		} else {
			logs.Debug.Printf("Failed to dump response %s %s: %v", in.Method, in.URL, err)
		}
	}
	return
}