/// <reference types="node" />
import { EventEmitter } from 'events';
import * as components from './components';
/**
 * @description Settings state used internally by the SDK.
 */
export declare type SettingsState = {
    path: string | undefined;
    schematics: {
        id: string;
        default: unknown;
    }[];
    values: Record<string, unknown>;
    emitter: EventEmitter;
} & typeof components.nodeFilesystem;
/**
 * @description Creates a new settings state
 * @param options Options for the settings state
 * @returns Settings state created
 */
export declare function settings(options: {
    path?: string;
    defaultSchematics?: {
        id: string;
        default: unknown;
    }[];
}): SettingsState;
/**
 * @description Retrieves settings from the state
 * @param state Settings state
 * @param query List of setting names to retrieve
 * @returns Object containing the settings queried
 */
export declare function getSettings(state: SettingsState, query: string[]): Record<string, unknown>;
/**
 * @description Mutates settings, but only modifies values that have actually changed.
 * @param state Settings state
 * @param map Map of setting names to values
 */
export declare function setSettings(state: SettingsState, map: Record<string, unknown>): void;
/**
 * @description Gets the schematics registered in the state.
 * @param state Settings state
 * @param query List of schematic IDs to retrieve
 * @returns List of schematics
 */
export declare function getSchematics(state: SettingsState, query: string[]): {
    id: string;
    default: unknown;
}[];
/**
 * @description Registers new schematics.
 * @param state Settings state
 * @param schemas List of schematics to register
 */
export declare function registerSchematics(state: SettingsState, schemas: {
    id: string;
    default: unknown;
}[]): void;
/**
 * @description Saves current settings to disk.
 * @param state Settings state
 */
export declare function saveSettings(state: SettingsState): void;
/**
 * @description Loads settings from disk. Not necessary if you pass 'path' in settings construction.
 * @param state Settings state
 * @returns Settings state
 */
export declare function loadSettings(state: SettingsState): void;