Imports cloud.google.com/go/auth cloud.google.com/go/auth/credentials cloud.google.com/go/auth/httptransport cloud.google.com/go/civil github.com/google/go-cmp/cmp github.com/gorilla/websocket Standard library imports bufio bytes context encoding/base64 encoding/json errors fmt io iter log math mime net/http net/http/httptest net/textproto net/url os path/filepath reflect regexp runtime slices sort strconv strings sync testing time