import { ControlValueAccessor } from '@angular/forms';
export declare abstract class HeadwindControlValueAccessor implements ControlValueAccessor {
    isDisabled: boolean;
    private readonly _internalNgControl;
    private readonly _internalRenderer;
    private readonly _internalElementRef;
    protected constructor();
    onChange: (value: any) => void;
    onTouched: () => void;
    abstract writeValue(obj: any): void;
    registerOnChange(fn?: (value: any) => void): void;
    registerOnTouched(fn?: () => void): void;
    setDisabledState(isDisabled: boolean): void;
    updateValue(value: any): void;
    private _setAttribute;
    private _removeAttribute;
}