import { SelectedItem } from './InputCheckboxGroup';
import { InputCheckboxGroupOption } from './InputCheckboxGroupItem';
export type InternalState = Array<{
    value: string;
    quantity?: number;
    isSelected: boolean;
}>;
type Action = {
    type: "updateQuantity";
    payload: {
        value: string;
        quantity: number;
    };
} | {
    type: "toggleSelection";
    payload: {
        value: string;
    };
};
export declare const reducer: (state: InternalState, action: Action) => InternalState;
export declare function makeInitialState({ options, defaultValues, }: {
    options: InputCheckboxGroupOption[];
    defaultValues: SelectedItem[];
}): InternalState;
export {};