export declare type IData = IDb | string;
export interface IDb {
    [field: string]: string | number | boolean | null | undefined;
}
export default class DropdownSelect extends HTMLElement {
    private dom;
    private slim_select;
    private css;
    private allowDeselect;
    private data;
    private placeholder;
    private searchPlaceholder;
    private searchText;
    private select;
    constructor();
    open(): void;
    close(): void;
    disable(): void;
    render(): void;
    set_data(data: IData[]): void;
    get_selected(): false | {
        [x: string]: string;
        value: string;
    }[] | {
        [x: string]: string;
        value: string;
    };
    set_selected(data: string[] | string): void;
    add_data(data: IData[]): void;
    private del_data;
    private initialize;
    private slimselect;
}