interface IReferenceObject {
    book: string | null;
    chapter: number | null;
    verse: number | null;
}
declare class ReferenceParser {
    private defaults;
    constructor({ defaults }?: {
        defaults?: IReferenceObject;
    });
    parse(referenceString: string): IReferenceObject | false;
    private _matchBook;
}
export default ReferenceParser;