import { ToolbarCommandState, ToolbarContext } from '../types.js';
export declare const getCurrentUndoDepth: (context: ToolbarContext | null) => any;
export declare const getCurrentRedoDepth: (context: ToolbarContext | null) => any;
export declare const createHistoryStateDeriver: (kind: "undo" | "redo") => ({ context }: {
    context: ToolbarContext | null;
}) => ToolbarCommandState;
export declare const createRulerStateDeriver: () => ({ context, superdoc }: {
    context: ToolbarContext | null;
    superdoc: Record<string, any>;
}) => ToolbarCommandState;
export declare const createZoomStateDeriver: () => ({ context, superdoc }: {
    context: ToolbarContext | null;
    superdoc: Record<string, any>;
}) => ToolbarCommandState;
export declare const createDocumentModeStateDeriver: () => ({ context, superdoc }: {
    context: ToolbarContext | null;
    superdoc: Record<string, any>;
}) => ToolbarCommandState;
export declare const createRulerExecute: () => ({ superdoc }: {
    context: ToolbarContext | null;
    superdoc: Record<string, any>;
    payload?: unknown;
}) => boolean;
export declare const createZoomExecute: () => ({ superdoc, payload }: {
    context: ToolbarContext | null;
    superdoc: Record<string, any>;
    payload?: unknown;
}) => boolean;
export declare const createDocumentModeExecute: () => ({ superdoc, payload }: {
    context: ToolbarContext | null;
    superdoc: Record<string, any>;
    payload?: unknown;
}) => boolean;
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