var golang.org/x/oauth2/internal.appengineClientHook

3 uses

	golang.org/x/oauth2/internal (current package)
		transport.go#L21: var appengineClientHook func(context.Context) *http.Client
		transport.go#L29: 	if appengineClientHook != nil {
		transport.go#L30: 		return appengineClientHook(ctx)