import { type StateAction } from "@codingame/monaco-vscode-api/vscode/vs/platform/agentHost/common/state/protocol/actions";
import { type ProtocolNotification } from "@codingame/monaco-vscode-xterm-common/vscode/vs/platform/agentHost/common/state/protocol/notifications";
/**
 * The current protocol version that new code speaks.
 *
 * Formatted as a [SemVer](https://semver.org) `MAJOR.MINOR.PATCH` string.
 */
export declare const PROTOCOL_VERSION = "0.1.0";
/**
 * Compares two `MAJOR.MINOR.PATCH` SemVer strings.
 *
 * Returns a negative number if `a < b`, zero if `a === b`, and a positive
 * number if `a > b`.
 */
export declare function compareProtocolVersions(a: string, b: string): number;
/**
 * Maps every action type to the protocol version that introduced it.
 * Adding a new action to `StateAction` without adding it here is a compile error.
 *
 * Versions are SemVer `MAJOR.MINOR.PATCH` strings (see `PROTOCOL_VERSION`).
 */
export declare const ACTION_INTRODUCED_IN: {
    readonly [K in StateAction["type"]]: string;
};
/**
 * Returns whether the given action type is known to the specified protocol version.
 */
export declare function isActionKnownToVersion(action: StateAction, clientVersion: string): boolean;
/**
 * Maps every notification type to the protocol version that introduced it.
 * Adding a new notification to `ProtocolNotification` without adding it here
 * is a compile error.
 *
 * Versions are SemVer `MAJOR.MINOR.PATCH` strings (see `PROTOCOL_VERSION`).
 */
export declare const NOTIFICATION_INTRODUCED_IN: {
    readonly [K in ProtocolNotification["type"]]: string;
};
/**
 * Returns whether the given notification type is known to the specified protocol version.
 */
export declare function isNotificationKnownToVersion(notification: ProtocolNotification, clientVersion: string): boolean;