async function verifyMissingAttribute(master, media, attributeName) {
        const error = new shaka.util.Error(
            shaka.util.Error.Severity.CRITICAL,
            shaka.util.Error.Category.MANIFEST,
            Code.HLS_REQUIRED_ATTRIBUTE_MISSING,
            attributeName);

        await verifyError(master, media, error);
      }
@param {string} master
@param {string} media
@param {string} attributeName