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package main
import (	"fmt"	"github.com/apex/log"	"net/http")
func main() {	http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {		writer.WriteHeader(200)		fmt.Fprint(writer, "ok")	})	err := http.ListenAndServe(":4500", nil)	if err != nil {		log.Fatal(err.Error())	}}