/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import { IConnect } from "@fluidframework/protocol-definitions";
export declare const ProtocolVersions: string[];
export declare function checkProtocolVersion(versions: string[]): [string[], string];
/**
 * Assert that the given message is a valid connect_document message from a client.
 *
 * @internal
 */
export declare function isValidConnectionMessage(message: unknown): message is IConnect;
//# sourceMappingURL=protocol.d.ts.map