import { InjectionToken } from '@angular/core';
import { FConnectorBase } from '../f-connector-base';
import * as i0 from "@angular/core";
export declare const F_NODE_INPUT: InjectionToken<FNodeInputBase>;
export declare abstract class FNodeInputBase extends FConnectorBase {
    abstract multiple: boolean;
    get canBeConnected(): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<FNodeInputBase, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<FNodeInputBase, never, never, {}, {}, never, never, false, never>;
}