declare const SEND_INTERNAL_MESSAGE: {
    CAPABILITIES: string;
    SETUP_COMPLETE: string;
    ASK_INITIALISATION: string;
    FOCUS_EVENT: string;
    MEMORY_USAGE: string;
};
declare const RECEIVE_INTERNAL_MESSAGE: {
    VERSIONS: string;
    FEATURE_FLAGS: string;
};
export { RECEIVE_INTERNAL_MESSAGE, SEND_INTERNAL_MESSAGE };