export default class Metadata {
    #private;
    constructor(path: string);
    get documentCount(): number;
    get indexes(): string[];
    incrementDocumentCount(amount?: number): Promise<void>;
    decrementDocumentCount(amount?: number): Promise<void>;
    addIndex(indexName: string): Promise<void>;
    updateLastModified(): Promise<void>;
    /**
     * Loads the collection metadata from the file system.
     *
     * Reads the metadata file and parses its JSON content to update the
     * metadata property. If the file cannot be read or does not exist,
     * it initializes the metadata by saving the default metadata to
     * the file system.
     *
     * @returns A promise that resolves when the metadata is loaded.
     */
    load(): Promise<void>;
}