import { LoggingConfig } from './parse';
import { Config, EnvSource } from './types';
export { configFileSource, readEnvConfig } from './dotenv';
export { Config, EnvConfig, EnvSource } from './types';
/**
 * Get default environment sources, depending on which ones are available.
 *
 * It supports 4 sources of environment variables:
 *   - direct environment variables (priotity 1 - highest)
 *   - content of a dotenv file in the DASHLANE_SSO_CONFIG environment variable (priotity 2)
 *       This is convenient for situation when having many environment variables is impractical
 *   - extra sources depending on the media and/or hosting platform (priotity 3 - lowest)
 */
export declare const getDefaultEnvSources: (extraSources?: EnvSource[] | undefined) => EnvSource[];
/**
 * Read configuration from miscelaneous environment sources.
 */
export declare const readConfig: (envSources: EnvSource[]) => Promise<{
    loggingConfig: LoggingConfig;
    config: Config | Error;
}>;