code: public static SanitizedContent fromSafeScriptProto(SafeScriptProto script) {
      return SanitizedContent.create(
          SafeScripts.fromProto(script).getSafeScriptString(), ContentKind.JS);
    }
docs: Converts a {@link SafeScriptProto} into a Soy {@link SanitizedContent} of kind JS.