import { ElementRef, Renderer2, OnInit } from '@angular/core';
import { NgControl } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class SelectPlaceholderDirective implements OnInit {
    private renderer;
    private _elem;
    private _formControl;
    placeholder: string;
    constructor(formControl: NgControl, elem: ElementRef, renderer: Renderer2);
    ngOnInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SelectPlaceholderDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<SelectPlaceholderDirective, "select[placeholder]", never, { "placeholder": "placeholder"; }, {}, never>;
}
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