export declare const MESSAGE_TYPE: {
    readonly EVENT_ACK: "EVENT_ACK";
    readonly EVENT_NACK: "EVENT_NACK";
    readonly EVENT_LOGIN_AUTH: "EVENT_LOGIN_AUTH";
    readonly EVENT_LOGIN_AUTH_ACK: "EVENT_LOGIN_AUTH_ACK";
    readonly EVENT_LOGIN_AUTH_NACK: "EVENT_LOGIN_AUTH_NACK";
    readonly EVENT_LOGOUT: "EVENT_LOGOUT";
    readonly LOGOUT_ACK: "LOGOUT_ACK";
    readonly EVENT_LOGOUT_NACK: "EVENT_LOGOUT_NACK";
    readonly HEARTBEAT_PING: "HEARTBEAT_PING";
    readonly HEARTBEAT_PONG: "HEARTBEAT_PONG";
    readonly DATA_LOGON: "DATA_LOGON";
    readonly LOGON_ACK: "LOGON_ACK";
    readonly LOGON_NACK: "LOGON_NACK";
    readonly DATA_LOGOFF: "DATA_LOGOFF";
    readonly LOGOFF_ACK: "LOGOFF_ACK";
    readonly QUERY_UPDATE: "QUERY_UPDATE";
    readonly MORE_ROWS: "MORE_ROWS";
    readonly MORE_ROWS_ACK: "MORE_ROWS_ACK";
    readonly META_REQUEST: "META_REQUEST";
    readonly FEATURE_ACK: "FEATURE_ACK";
    readonly JSON_SCHEMA_REQUEST: "JSON_SCHEMA_REQUEST";
    readonly JSON_SCHEMA_FEATURE_ACK: "JSON_SCHEMA_FEATURE_ACK";
    readonly MSG_NACK: "MSG_NACK";
    readonly RESOURCES_REQUEST: "RESOURCES_REQUEST";
    readonly RESOURCES_REQUEST_ACK: "RESOURCES_REQUEST_ACK";
    readonly RESOURCES_REQUEST_NACK: "RESOURCES_REQUEST_NACK";
};
export declare const ERROR_CODE: {
    readonly INCORRECT_CREDENTIALS: "INCORRECT_CREDENTIALS";
    readonly VALIDATION_ERROR: "VALIDATION_ERROR";
    readonly UNKNOWN_RESOURCE: "UNKNOWN_RESOURCE";
    readonly NOT_LOGGED_ON: "NOT_LOGGED_ON";
};
export declare function isCommitEvent(messageType: unknown): messageType is string;
export declare function isRequestReply(messageType: unknown): messageType is string;