import * as p_di from "../../../interface/data.js";
export declare function dictionary<T extends p_di.Value>(source: {
    readonly [id: string]: T;
}): p_di.Dictionary<T>;
export declare function optionals_dictionary<T extends p_di.Value>(source: {
    readonly [id: string]: p_di.Optional_Value<T>;
}): p_di.Dictionary<T>;
export declare function list<T extends p_di.Value>(source: readonly T[]): p_di.List<T>;
export declare function optionals_list<T extends p_di.Value>(source: readonly p_di.Optional_Value<T>[]): p_di.List<T>;
export declare const segmented_list: <T extends p_di.Value>(lists: (p_di.List<T>)[]) => p_di.List<T>;
export declare const chain: <T extends p_di.Value>(list: (p_di.List<T>), tail_element: T) => p_di.List<T>;
export declare const set: <T extends p_di.Value>(value: T) => p_di.Optional_Value<T>;
export declare const not_set: <T extends p_di.Value>() => p_di.Optional_Value<T>;
/**
 * first the properties can be resolved to variables, then the variables can be
 * used to construct the group object. This allows for properties to refer to each other, as long as there are no circular references.
 */
export declare const group_resolve: <Resolved extends p_di.Group>(assign: () => Resolved) => Resolved;
export declare const nothing: () => symbol;
export declare const group_empty: () => symbol;