/** Dependencies */
import { NodeBlock, Slots } from "@tripetto/runner";
import { IDropdownOption } from "./option";
export declare abstract class Dropdown extends NodeBlock<{
    readonly options?: IDropdownOption[];
    readonly randomize?: boolean;
}> {
    /** Contains the randomized options order. */
    private randomized?;
    /** Contains the score slot. */
    readonly scoreSlot:
        | import("@tripetto/runner").Value<number, Slots.Numeric>
        | undefined;
    /** Contains the dropdown slot. */
    readonly dropdownSlot: import("@tripetto/runner").Value<
        string,
        Slots.String
    >;
    /** Contains if the dropdown is required. */
    readonly required: boolean;
    /** Retrieves the dropdown options. */
    get options(): IDropdownOption[];
    /** Retrieves the reference of the selection option. */
    get value(): string;
    /** Sets the reference of the selected option. */
    set value(reference: string);
    /** Selects an option. */
    select(option: IDropdownOption | undefined): string;
}