import { DynamicModule } from '@nestjs/common';
import { ConfigFactory, ConfigModuleOptions } from './interfaces';
export declare class ConfigModule {
    static forRoot(options?: ConfigModuleOptions): DynamicModule;
    static forFeature(config: ConfigFactory): DynamicModule;
    private static loadEnvFile;
    private static assignVariablesToProcess;
    private static mergePartial;
    private static getSchemaValidationOptions;
}