/**
 * Object holding user provided and automatically generated tokens.
 *
 * This holder can be used in order to overwrite or add more tokens
 * which will be used for dependency injection later
 */
export interface InjectablesHolder {
    /**
     * Injects class annotated with `@Service` decorator.
     * This class will be instantiated on demand when token requested.
     *
     * @param token to identify service, can be service class itself
     * @param service to instantiate when requested by token
     */
    injectService(token: unknown, service: unknown): void;
    /**
     * Injects singleton object, number or anything else.
     *
     * When token requested, DI will just return this value
     *
     * @param token to identify object/singleton
     * @param singleton to return when requested by token
     */
    injectSingleton(token: unknown, singleton: unknown): void;
}
export declare const injectablesHolder: InjectablesHolder;