import { ModuleMetadata, Type, Provider } from '@nestjs/common/interfaces';
export interface Factory<T> {
    createOptions(): T | Promise<T>;
}
export interface AsyncOptions<OPTIONS, FACTORY extends Factory<OPTIONS> = Factory<OPTIONS>> extends Pick<ModuleMetadata, 'imports'> {
    useExisting?: Type<FACTORY>;
    useClass?: Type<FACTORY>;
    useFactory?: (...args: any[]) => Promise<OPTIONS> | OPTIONS;
    inject?: any[];
}
export declare function createAsyncProviders<T>(options: AsyncOptions<T>, token: any): Provider<any>[];
export declare function createAsyncOptionsProvider<T>(options: AsyncOptions<T>, token: any): Provider;