Imports github.com/bazelbuild/rules_webtesting/go/cropper github.com/bazelbuild/rules_webtesting/go/metadata/capabilities github.com/bazelbuild/rules_webtesting/go/webdriver github.com/bazelbuild/rules_webtesting/go/wtl/proxy/driverhub Standard library imports bytes context encoding/base64 encoding/json fmt image image/png log net/http