package mimeimport (	"encoding/base64"	"fmt"	"html/template"	"net/http"	"strings")// these are mostly helper functions for the templating engine, perhaps.// wrapper but at least I'll be able to change it in the future if something goes southfunc Type(data []byte) string {	return http.DetectContentType(data)}// returns true if the mimetype is an image (SVG ALSO COUNTS)func IsImage(mime string) bool {	return strings.HasPrefix(mime, "image/")}// returns true if the mimetype is a videofunc IsVideo(mime string) bool {	return strings.HasPrefix(mime, "video/")}// returns true if the mimetype is text (or code, possibly)func IsText(mime string) bool {	return strings.HasPrefix(mime, "text/")}// generates one of those `data:text/javascript;base64,gibberish-here`func DataURI(data []byte, mime string) string {	encoded := base64.StdEncoding.EncodeToString(data)	return fmt.Sprintf("data:%s;base64,%s", mime, encoded)}// makes it not auto-escape when used before a "src="func Src(data []byte, mime string) template.URL {	return template.URL(DataURI(data, mime))}func ToStr(data []byte) string {	return string(data)}