export declare const EXTENSION_ELEMENT: {
    CONTENT: string;
};
export declare const EXTENSION_PROVIDER: {
    TASK_INFO: string;
    AUDIO_NOTES: string;
    UNBALANCED_MAP: string;
    SPREAD_SHEET: string;
};
export declare const EXTENSION_EVENT: {
    ADD_RESOURCE_REF: string;
    REMOVE_RESOURCE_REF: string;
};