import { InjectionToken } from '@angular/core';
import { FConnectorBase } from '../f-connector-base';
import * as i0 from "@angular/core";
export declare const F_NODE_OUTLET: InjectionToken<FNodeOutletBase>;
export declare abstract class FNodeOutletBase extends FConnectorBase {
    abstract isConnectionFromOutlet: boolean;
    private outputs;
    get canBeConnected(): boolean;
    abstract canBeConnectedInputs: string[];
    setOutputs(outputs: FConnectorBase[]): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<FNodeOutletBase, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<FNodeOutletBase, never, never, {}, {}, never, never, false, never>;
}