import { InjectionToken } from '@angular/core';
import { FormControlInput } from '../form-control-group/index';
export declare type MaterialMode = 'float' | 'static' | 'disabled';
export interface FormControlMaterialInput extends FormControlInput {
    readonly isLabelFloating: boolean;
    readonly materialModifierClass?: string;
}
export interface FormControlMaterialHost {
    readonly mode: MaterialMode;
}
export declare const FORM_CONTROL_MATERIAL_HOST: InjectionToken<FormControlMaterialHost>;
export declare const FORM_CONTROL_MATERIAL_INPUT: InjectionToken<FormControlMaterialInput>;
export declare class FormControlGroupMaterialConfig {
    constructor(mode?: MaterialMode);
    private _mode;
    private _modeChangeEmitter;
    modeChange: import("rxjs").Observable<MaterialMode>;
    readonly mode: MaterialMode;
    setMode(mode: MaterialMode): void;
}