export declare function getQ<Section, Value>(section: Section | undefined, querySelector: (state: Section) => Value, initialState: Value): {
    q?: undefined;
} | {
    q: Value;
};
export declare function getSortCriteria<Section, Value>(section: Section | undefined, sortCriteriaSelector: (state: Section) => Value, initialState: Value): {
    sortCriteria?: undefined;
} | {
    sortCriteria: Value;
};
export declare function getFacets<Value, Request, Parameters>(section: Record<string, {
    request: Request;
}> | undefined, facetIsEnabled: (facetId: string) => boolean, valuesSelector: (request: Request) => Value[], out: keyof Parameters): {
    [out]: {
        [x: string]: Value[];
    };
};
export declare function getTab<Section>(section: Section | undefined, tabSelector: (tabSet: Section) => string, initialState: string): {
    tab?: undefined;
} | {
    tab: string;
};