=http.StatusOK{ifdoRetries&&attempt<maxRetries{time.Sleep(retryDelay)continue}returnfmt.Errorf("download error after %d attempts, status code: %d",attempt,resp.StatusCode) }file,err:=os.Create(dstPath)iferr!=nil{returnerr}deferfile.Close()vardownloadedint64startTime=time.Now()ticker:=time.New...