Imports cloud.google.com/go/compute/metadata github.com/google/s2a-go github.com/google/s2a-go/fallback golang.org/x/oauth2 golang.org/x/oauth2/google google.golang.org/grpc google.golang.org/grpc/credentials Imports in module “google.golang.org/api” google.golang.org/api/internal/cert google.golang.org/api/internal/impersonate Standard library imports context crypto/tls encoding/json errors fmt io/ioutil log net net/http net/url os strings sync time