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: timeout_transport.go
    path of file: ./repos/teller/vendor/go.etcd.io/etcd/pkg/v3/transport
    
    the code of the file until where you have to start completion: // Copyright 2015 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may n
    
func NewTimeoutTransport(info TLSInfo, dialtimeoutd, rdtimeoutd, wtimeoutd time.Duration) (*http.Transport, error) {
	tr, err := NewTransport(info, dialtimeoutd)
	if err != nil {
		return nil, err
	}

	if rdtimeoutd != 0 || wtimeoutd != 0 {
		// the timed out connection will timeout soon after it is idle.
		// it should not be put back to http transport as an idle connection for future usage.
		tr.MaxIdleConnsPerHost = -1
	} else {
		// allow more idle connections between peers to avoid unnecessary port allocation.
		tr.MaxIdleConnsPerHost = 1024
	}

	tr.Dial = (&rwTimeoutDialer{
		Dialer: net.Dialer{
			Timeout:   dialtimeoutd,
			KeepAlive: 30 * time.Second,
		},
		rdtimeoutd: rdtimeoutd,
		wtimeoutd:  wtimeoutd,
	}).Dial
	return tr, nil
}