import { IConfigOptions } from '@allgemein/config';
/**
 * Check if config file load order is present. Possible passthrough of the config order is:
 * - env variable
 *   - with data as string
 *   - with data as file
 * - load config order json file fi exists
 *   - like config-load.json oder ./config/config-load.json
 * - use at least DEFAULT_CONFIG_LOAD_ORDER
 */
export declare class ConfigLoadOrder {
    static FILENAMES: string[];
    loadOrder: IConfigOptions[];
    constructor();
    /**
     * Apply default value at the end.
     */
    private applyDefault;
    /**
     * Check all possibilities for load order
     */
    detect(): boolean;
    /**
     * Check if declaration of config load in env variable is present,
     * if it is set it could be the full declaration data as JSON or file path.
     */
    private checkEnvForLoadOrderDeclaration;
    /**
     * Check if files defined in ConfigLoadOrder.FILENAMES exists, the first which exists and contain the config order data, will be loaded.
     *
     * @private
     */
    private checkForConfigOrderFiles;
    /**
     * Return defined load order.
     */
    get(): IConfigOptions[];
}