import { InjectionToken } from '@angular/core';
import { type DfId, type DfNodeSize } from '../ng-draw-flow.interfaces';
import * as i0 from "@angular/core";
export declare class DfNodeSizeRegistryService {
    private readonly sizesSignal;
    readonly sizes: import("@angular/core").Signal<ReadonlyMap<string, DfNodeSize>>;
    set(nodeId: DfId, size: DfNodeSize): void;
    remove(nodeId: DfId): void;
    private isValid;
    static ɵfac: i0.ɵɵFactoryDeclaration<DfNodeSizeRegistryService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DfNodeSizeRegistryService>;
}
export declare const DF_NODE_SIZE_REGISTRY: InjectionToken<DfNodeSizeRegistryService | null>;