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: dane.go
    path of file: ./repos/sliver/vendor/github.com/miekg/dns
    
    the code of the file until where you have to start completion: package dns

import (
	"crypto/sha256"
	"crypto/sha512"
	"crypto/x509"
	"encoding/hex"
	"errors"
)

// CertificateToDANE converts a certificate to a hex string as used in the TLSA or SMIMEA records.
func CertificateToDANE(selector, matchingType uint8, cert *x509.Certificate) (string, error) {
	switch matchingType {
	case 0:
		switch selector {
		case 0:
			return hex.EncodeToString(cert.Raw), nil
		cas
    
func CertificateToDANE(selector, matchingType uint8, cert *x509.Certificate) (string, error) {
	switch matchingType {
	case 0:
		switch selector {
		case 0:
			return hex.EncodeToString(cert.Raw), nil
		case 1:
			return hex.EncodeToString(cert.RawSubjectPublicKeyInfo), nil
		}
	case 1:
		h := sha256.New()
		switch selector {
		case 0:
			h.Write(cert.Raw)
			return hex.EncodeToString(h.Sum(nil)), nil
		case 1:
			h.Write(cert.RawSubjectPublicKeyInfo)
			return hex.EncodeToString(h.Sum(nil)), nil
		}
	case 2:
		h := sha512.New()
		switch selector {
		case 0:
			h.Write(cert.Raw)
			return hex.EncodeToString(h.Sum(nil)), nil
		case 1:
			h.Write(cert.RawSubjectPublicKeyInfo)
			return hex.EncodeToString(h.Sum(nil)), nil
		}
	}
	return "", errors.New("dns: bad MatchingType or Selector")
}