func Decode(shortURL string) ([]byte, error) {
	// Base64 decode the 7 char string
	shortURLHashBytes, err := base64.RawURLEncoding.DecodeString(shortURL)
	if err != nil {
		return nil, err
	}
	return shortURLHashBytes, nil
}
// Decode takes a short URL (7 character base64 hash) and converts back
// to hash in bytes.
Decode takes a short URL (7 character base64 hash) and converts back
to hash in bytes.
// Decode takes a short URL ( 7 character base64 hash ) and converts back // to hash in bytes .
func Decode(shortURL string) ([]byte, error) {
	shortURLHashBytes, err := base64.RawURLEncoding.DecodeString(shortURL)
	if err != nil {
		return nil, err
	}
	return shortURLHashBytes, nil
}
func Decode ( shortURL string ) ( [ ] byte , error ) { shortURLHashBytes , err := base64 . RawURLEncoding . DecodeString ( shortURL ) if err != nil { return nil , err } return shortURLHashBytes , nil }
Decode takes a short URL (7 character base64 hash) and converts back
to hash in bytes.
Decode takes a short URL ( 7 character base64 hash ) and converts back to hash in bytes .
// Base64 decode the 7 char string