import { Property, PropertyOptions } from './Property';
import { State } from './State';
import { Json, JsonValue } from '../types/Json';
import { Optional } from '../types/Types';
import { TypeGuard } from '../types/TypeGuard';
import { List } from '../types/List';
import { Get } from '../types/Get';
import { Construct } from '../types/Constructor';
export type Mapping = {
    property: string;
    in: (source?: Json, key?: string) => Optional<JsonValue>;
    out: (source?: Json, key?: string) => Optional<JsonValue>;
};
export declare const isMapping: TypeGuard<Mapping>;
export type MapStartFrom = 'scratch' | 'source';
export type MapOptions = {
    startFrom: MapStartFrom;
};
export declare class Mapper extends State implements Mapping {
    readonly options: MapOptions;
    readonly property: string;
    protected readonly map: {
        item: (property: string, options?: PropertyOptions) => Property;
        ignore: (property?: string) => Mapping;
        skipIn: (property: string) => Mapping;
        skipOut: (property: string) => Mapping;
        func: (property: string, funcIn: Get<Optional<JsonValue>, Json>, funcOut: Get<Optional<JsonValue>, Json>) => Mapping;
        add: (funcIn: Get<JsonValue, Json>) => Mapping;
        map: (mapper: Construct<Mapper>, property?: string) => Mapping;
        propsToList: (...maps: Mapping[]) => Mapping;
        list: (mapper: Mapping, property: string) => Mapping;
    };
    constructor(options?: MapOptions, property?: string);
    get properties(): List<[string, Mapping]>;
    get keys(): List<string>;
    get columns(): List<string>;
    private get droppedIn();
    private get droppedOut();
    in(from?: Json): Json;
    out(to?: Json): Json;
    toString(): string;
}
export declare const mappings: {
    item: (property: string, options?: PropertyOptions) => Property;
    ignore: (property?: string) => Mapping;
    skipIn: (property: string) => Mapping;
    skipOut: (property: string) => Mapping;
    func: (property: string, funcIn: Get<Optional<JsonValue>, Json>, funcOut: Get<Optional<JsonValue>, Json>) => Mapping;
    add: (funcIn: Get<JsonValue, Json>) => Mapping;
    map: (mapper: Construct<Mapper>, property?: string) => Mapping;
    propsToList: (...maps: Mapping[]) => Mapping;
    list: (mapper: Mapping, property: string) => Mapping;
};