import { EnvConfigSettings } from '../types';
import { ConfigSettingsBuilderOptions } from './types';
export declare const transformFileSettings: <T extends {} = {}>(settings: T | EnvConfigSettings<T>, rootPath: string, options?: ConfigSettingsBuilderOptions) => Promise<T | EnvConfigSettings<T>>;
/**
 * Determines whether a settings object contains $ref tokens for propety values
 * @param settings Settings file that may contain $ref tokens
 */
export declare const hasRef: <T extends {} = {}>(settings: T | EnvConfigSettings<T>) => boolean;
/**
 * Transforms properties in the object that begin with a $ref token followed by a relative path to settings file with
 * values to be used for the property.
 * @param settings Settings object that may contain $ref tokens for property values
 * @param rootPath Root path from which $ref paths will be resolved
 * @param options ConfigSettingsBuilderOptions passed to ConfigSettingsBuilder to build referenced settings files
 */
export declare const resolveRefs: <T extends {} = {}>(settings: T | EnvConfigSettings<T>, rootPath: string, options?: ConfigSettingsBuilderOptions) => Promise<T | EnvConfigSettings<T>>;