/**
 * @deprecated Since 3.0.0. Will be removed with 5.0.0
 * Not maintained anymore.
 * Use the 'ix-input' component instead
 */
export declare class InputGroup {
    hostElement: HTMLIxInputGroupElement;
    disabled: boolean;
    inputPaddingLeft: number;
    inputPaddingRight: number;
    startSlotRef?: HTMLElement;
    endSlotRef?: HTMLElement;
    private get inputElement();
    private observer?;
    componentWillLoad(): void;
    componentDidRender(): void;
    private onValidInput;
    private onInvalidInput;
    private prepareInputElement;
    private slotChanged;
    private startSlotChanged;
    private endSlotChanged;
    private getChildrenWidth;
    render(): any;
}