/** @internal */
export type FilterFieldState = {
    suggestions: Map<string, () => void>;
    activeSuggestion: number;
};
/** @internal */
export type SuggestionPayload = {
    /** The id of the suggestion. */
    id: string;
};
/** @internal */
export type AddSuggestionPayload = SuggestionPayload & {
    /** Callback to apply the selected suggestion's value. */
    applySuggestion: () => void;
};
/** @internal */
export declare const enum FilterFieldActions {
    ADDSUGGESTION = "add",
    REMOVESUGGESTION = "remove"
}
/** @internal */
export type FilterFieldReducerAction = {
    type: FilterFieldActions.ADDSUGGESTION;
    payload: AddSuggestionPayload;
} | {
    type: FilterFieldActions.REMOVESUGGESTION;
    payload: SuggestionPayload;
};
/**
 * FilterField reducer function used to add / remove filter field suggestions.
 * @internal
 */
export declare function filterFieldReducer(state: FilterFieldState, action: FilterFieldReducerAction): FilterFieldState;