import { Type } from "@nestjs/common";
import { ModuleRef } from "@nestjs/core";
import { ConfigModuleOptions } from "../config.module";
export declare class ConfigTransformerService {
    private options;
    private moduleRef;
    constructor(options: ConfigModuleOptions, moduleRef: ModuleRef);
    transform<T>(configType: Type<T>): Promise<T | null>;
    reloadConfig<T extends Object, GetValueOptions>(config: T, options?: {
        getValue?: GetValueOptions;
    }): Promise<void>;
    private loadConfig;
    private getConfigMetadata;
    private getConfigProvider;
}