/// <reference types="mongoose/types/pipelinestage" />
/// <reference types="mongoose/types/error" />
/// <reference types="mongoose/types/connection" />
/// <reference types="mongoose" />
interface IFormula {
    text: string;
    metre: string;
    referent: string;
    metricalSortKey: string;
    prettyMetreForGrouping: string;
}
declare const Formula: import("mongoose").Model<IFormula, {}, {}, {}>;
export { Formula, IFormula };