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