import { AfterViewInit, ElementRef, Renderer2, ChangeDetectorRef } from '@angular/core';
import { MaterialMode, FormControlMaterialInput } from './types';
import { FormControlGroupMaterialConfig } from './types';
export declare class FormControlGroupMaterialDirective implements AfterViewInit {
    private config;
    private elementRef;
    private renderer;
    private cdRef;
    constructor(config: FormControlGroupMaterialConfig, elementRef: ElementRef<HTMLElement>, renderer: Renderer2, cdRef: ChangeDetectorRef);
    globalMode: MaterialMode;
    localMode: MaterialMode;
    readonly mode: MaterialMode;
    readonly active: FormControlMaterialInput;
    input?: FormControlMaterialInput;
    readonly hasMaterialDirective: boolean;
    readonly classMaterial: boolean;
    focused: boolean;
    readonly classMaterialFloatingLabel: boolean;
    float: boolean;
    _currentModifierClass?: string;
    ngAfterViewInit(): void;
}