/// <reference types="node" />
import { EventEmitter } from 'events';
import { OnDidChangeCallback, Options, Unsubscribe, Schema, OnDidAnyChangeCallback } from './types';
declare class Conf<T extends Record<string, any> = Record<string, unknown>> implements Iterable<[keyof T, T[keyof T]]> {
    #private;
    readonly path: string;
    readonly events: EventEmitter;
    constructor(partialOptions?: Readonly<Partial<Options<T>>>);
    /**
    Get an item.

    @param key - The key of the item to get.
    @param defaultValue - The default value if the item does not exist.
    */
    get<Key extends keyof T>(key: Key): T[Key];
    get<Key extends keyof T>(key: Key, defaultValue: Required<T>[Key]): Required<T>[Key];
    get<Key extends string, Value = unknown>(key: Exclude<Key, keyof T>, defaultValue?: Value): Value;
    /**
    Set an item or multiple items at once.

    @param {key|object} - You can use [dot-notation](https://github.com/sindresorhus/dot-prop) in a key to access nested properties. Or a hashmap of items to set at once.
    @param value - Must be JSON serializable. Trying to set the type `undefined`, `function`, or `symbol` will result in a `TypeError`.
    */
    set<Key extends keyof T>(key: Key, value?: T[Key]): void;
    set(key: string, value: unknown): void;
    set(object: Partial<T>): void;
    /**
    Check if an item exists.

    @param key - The key of the item to check.
    */
    has<Key extends keyof T>(key: Key | string): boolean;
    /**
    Reset items to their default values, as defined by the `defaults` or `schema` option.

    @see `clear()` to reset all items.

    @param keys - The keys of the items to reset.
    */
    reset<Key extends keyof T>(...keys: Key[]): void;
    /**
    Delete an item.

    @param key - The key of the item to delete.
    */
    delete<Key extends keyof T>(key: Key): void;
    /**
    Delete all items.

    This resets known items to their default values, if defined by the `defaults` or `schema` option.
    */
    clear(): void;
    /**
    Watches the given `key`, calling `callback` on any changes.

    @param key - The key wo watch.
    @param callback - A callback function that is called on any changes. When a `key` is first set `oldValue` will be `undefined`, and when a key is deleted `newValue` will be `undefined`.
    @returns A function, that when called, will unsubscribe.
    */
    onDidChange<Key extends keyof T>(key: Key, callback: OnDidChangeCallback<T[Key]>): Unsubscribe;
    /**
    Watches the whole config object, calling `callback` on any changes.

    @param callback - A callback function that is called on any changes. When a `key` is first set `oldValue` will be `undefined`, and when a key is deleted `newValue` will be `undefined`.
    @returns A function, that when called, will unsubscribe.
    */
    onDidAnyChange(callback: OnDidAnyChangeCallback<T>): Unsubscribe;
    get size(): number;
    get store(): T;
    set store(value: T);
    [Symbol.iterator](): IterableIterator<[keyof T, T[keyof T]]>;
    private _encryptData;
    private _handleChange;
    private readonly _deserialize;
    private readonly _serialize;
    private _validate;
    private _ensureDirectory;
    private _write;
    private _watch;
    private _migrate;
    private _containsReservedKey;
    private _isVersionInRangeFormat;
    private _shouldPerformMigration;
    private _get;
    private _set;
}
export { Schema, Options };
export default Conf;
