import type { Metadata } from './grpc-js.js';
/**
 * Huan(202108): This is for compatible with old clients (version v0.26 or before)
 *  for non-tls authorization:
 *    use the HTTP2 header `:authority` as the token.
 *
 * This feature is planed to be removed after Dec 31, 2022
 */
declare function monkeyPatchMetadataFromHttp2Headers(MetadataClass: typeof Metadata): () => void;
export { monkeyPatchMetadataFromHttp2Headers, };
//# sourceMappingURL=mokey-patch-header-authorization.d.ts.map