Imports golang.org/x/net/context golang.org/x/net/context/ctxhttp gopkg.in/olivere/elastic.v5/backoff gopkg.in/olivere/elastic.v5/uritemplates Standard library imports bytes compress/gzip encoding/json errors fmt io io/ioutil math/rand net/http net/http/httputil net/url reflect regexp runtime strconv strings sync sync/atomic time