import { ComboboxBase } from './combobox-base';
/**
 * Value management layer for PktCombobox.
 * Handles selection, deselection, user-added values, and input reset.
 */
export declare class ComboboxValue extends ComboboxBase {
    toggleValue(value: string | null): void;
    protected setSelected(value: string | null): void;
    protected removeSelected(value: string | null): void;
    protected addAllOptions(): void;
    protected removeAllSelected(): void;
    protected addValue(): void;
    protected removeValue(value: string | null): void;
    protected addNewUserValue(value: string | null): void;
    protected resetComboboxInput(shouldResetInput?: boolean): void;
    protected removeLastValue(e: Event): void;
}