export declare class TransportMessageHeaders {
    private static readonly MESSAGE_GUID_KEY;
    private static readonly MESSAGE_TYPE_KEY;
    private static readonly TIMESTAMP_IN_MS_KEY;
    private static readonly MESSAGE_SEQUENCE_KEY;
    private static readonly FIXTURE_ID_KEY;
    private static readonly MARKET_ID_KEY;
    private static readonly SPORT_ID_KEY;
    private static readonly ALLOWED_KEYS;
    messageType: string;
    messageSequence: string;
    messageGuid: string;
    fixtureId: string;
    marketId: string;
    sportId: string;
    timestampInMs: string;
    static createFromProperties(properties: Record<string, unknown>): TransportMessageHeaders;
    private static getRequiredProperty;
    private static safePropertyAccess;
    private static validateKey;
    private static handleMissingProperty;
    private static extractValidValue;
    private static convertToString;
    private static validateFinalValue;
}