export declare class QuestionBase<T> {
    value: T | undefined;
    key: string;
    label: string;
    required: number;
    email: number;
    order: number;
    row: number;
    column: number;
    ptctNo: string;
    type: string;
    placeholder: string;
    options: {
        key: string;
        value: any;
    }[];
    unit: string;
    format: string;
    attachments: any[];
    constructor(options?: {
        value?: T;
        key?: string;
        label?: string;
        required?: any;
        email?: number;
        order?: number;
        ptctNo?: string;
        type?: string;
        row?: number;
        column?: number;
        placeholder?: string;
        options?: {
            key: string;
            value: string;
        }[];
        unit?: string;
        format?: string;
        attachments?: any[];
    });
}