import { Document, FilterQuery, Types } from 'mongoose';
export declare type ToNumberFunc = <T>(age: T) => number;
export declare type ToTypeFunc = <T>(value: number) => T;
export declare type FilterQueryFunc<TKey, TValue extends Document> = (key: TKey) => FilterQuery<TValue>;
/**
 * Options to configure Mongoose (mongodb) as a storage provider
 */
export interface IMongooseProviderOptions<TKey = Types.ObjectId, TValue extends Document = Document> {
    /**
     * A function that returns a query to the search key
     */
    keyFunc?: FilterQueryFunc<TKey, TValue>;
    /**
     * The property (with . seperators for nested properties) to use as the search key on a document
     */
    keyProperty?: string;
    /**
     * The property (with . seperators for nested properties) that stores when the the document was last modified
     */
    ageProperty: string;
    /**
     * Convert the ageProperty to a numeric age. Set undefined if already a number
     */
    ageToNumberFunc?: ToNumberFunc;
    /**
     * Convert the numeric age to the ageProperty type. Set undefined if already a number
     */
    numberToAgeFunc?: ToTypeFunc;
}
/**
 * Default options to use Mongoosedb _id ObjectID as the key and update as a write policy
 */
export declare function getDefaultOptions<TValue extends Document = Document>(): IMongooseProviderOptions<Types.ObjectId, TValue>;
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