import { ChangeLog } from '../changelog';
import { EditorModel } from '../editormodel';
import { ModelAction } from './model';
/**
 * For undo / redo, that return the opposite action
 */
export declare type ACTION_INTERFACE<A> = (a: A) => A | undefined;
declare type INIT_INTERFACE<S> = (s: S) => void;
declare type NEW_ACTION<A> = (a: A) => void;
declare type EDIT_ACTION = undefined | ((log: ChangeLog, user: string) => void);
/**
 * Contains 3 items: data object, action (the command), initialier
 */
export declare type UndoReducerInterface<S, A> = [
    S,
    ACTION_INTERFACE<A>,
    INIT_INTERFACE<S>
];
export declare type UndoManagerInterface<S, A> = [
    S,
    NEW_ACTION<A>,
    EDIT_ACTION,
    EDIT_ACTION,
    () => void
];
export declare type UndoReducerModelInterface = [
    EditorModel,
    (x: ModelAction, page: string) => ModelAction | undefined,
    INIT_INTERFACE<EditorModel>
];
export {};
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