import { InjectionToken } from '@angular/core';
import { IHasHostElement } from '../../i-has-host-element';
import * as i0 from "@angular/core";
export declare const F_MARKER: InjectionToken<unknown>;
export declare abstract class FMarkerBase implements IHasHostElement {
    abstract hostElement: HTMLElement;
    abstract width: number;
    abstract height: number;
    abstract refX: number;
    abstract refY: number;
    abstract type: string;
    abstract orient: 'auto' | 'auto-start-reverse' | string;
    abstract markerUnits: 'strokeWidth' | 'userSpaceOnUse';
    static ɵfac: i0.ɵɵFactoryDeclaration<FMarkerBase, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<FMarkerBase, never, never, {}, {}, never, never, false, never>;
}