import { VersionedKeyPair, VersionedKey } from '../types/index.js';
/**
 * Read all indexes from a file.
 *
 * @param type - The type of the index.
 * @param abspath - The path to read the indexes from.
 * @param index_name - The name of the index to read.
 * @returns The indexes.
 * @since 1.0.0
 * @author Caique Araujo <caique@piggly.com.br>
 */
export declare function readAll<Index = VersionedKey>(type: 'keypairs' | 'secrets', abspath: string, index_name: string): Promise<Array<Index>>;
/**
 * Read a key from an index.
 *
 * @param type - The type of the index.
 * @param abspath - The path to read the index from.
 * @param index_name - The name of the index to read.
 * @param version - The version of the key to read.
 * @returns The key.
 * @since 1.0.0
 * @author Caique Araujo <caique@piggly.com.br>
 */
export declare function readKey<Index extends {
    version: number;
}>(type: 'keypairs' | 'secrets', abspath: string, index_name: string, version: number): Promise<undefined | Index>;
/**
 * Remove a key from an index.
 *
 * @param type - The type of the index.
 * @param abspath - The path to remove the key from.
 * @param index_name - The name of the index to remove the key from.
 * @param version - The version of the key to remove.
 * @returns The key.
 * @since 1.0.0
 * @author Caique Araujo <caique@piggly.com.br>
 */
export declare function remove(type: 'keypairs' | 'secrets', abspath: string, index_name: string, version: number): Promise<string>;
/**
 * Check if a version exists in an index.
 *
 * @param indexes - The indexes to check.
 * @param version - The version to check.
 * @returns True if the version exists, false otherwise.
 * @since 1.0.0
 * @author Caique Araujo <caique@piggly.com.br>
 */
export declare function versionExists(indexes: Array<{
    version: number;
}>, version: number): boolean;
/**
 * Write an index to a file.
 *
 * @param type - The type of the index.
 * @param abspath - The path to write the index to.
 * @param index_name - The name of the index to write.
 * @param indexes - The indexes to write.
 * @returns The index.
 * @since 1.0.0
 * @author Caique Araujo <caique@piggly.com.br>
 */
export declare function write(type: 'keypairs' | 'secrets', abspath: string, index_name: string, indexes?: Array<VersionedKeyPair | VersionedKey>): Promise<string>;