Imports github.com/kevinburke/go-types github.com/kevinburke/rest github.com/ttacon/libphonenumber golang.org/x/sync/errgroup Standard library imports errors fmt image image/gif image/jpeg image/png io io/ioutil net/http net/http/httputil net/url os sort strconv strings time unicode unicode/utf8 encoding/json bytes context crypto/hmac crypto/sha1 encoding/base64