import { OnDestroy } from '@angular/core';
import { Subject } from 'rxjs';
import { BsPlaceholderComponent } from '../placeholder/placeholder.component';
import * as i0 from "@angular/core";
export declare class BsPlaceholderFieldDirective implements OnDestroy {
    private placeholder;
    constructor(placeholder: BsPlaceholderComponent);
    html?: string;
    minWidth: number;
    marginBottom: number;
    placeholderClass: boolean;
    destroyed$: Subject<unknown>;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BsPlaceholderFieldDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<BsPlaceholderFieldDirective, "[bsPlaceholderField]", never, {}, {}, never, never, false, never>;
}
