import EventEmitter from 'node:events';
import type { Config } from '../config.abstract';
import type { PropertyException } from '../exceptions';
import type { ConfigSource, ConfigSourceException } from '../sources';
import type { Changes, RawValues } from '../types';
export declare class ReloadEvents extends EventEmitter {
}
export declare interface ReloadEvents {
    on(e: 'reload', fn: (source: ConfigSource, values: RawValues) => void): this;
    on(e: 'reload_failure', fn: (source: ConfigSource, err: ConfigSourceException) => void): this;
    on(e: 'merge', fn: (source: ConfigSource, changes: Changes) => void): this;
    on(e: 'update', fn: (section: Config, keys: string[]) => void): this;
    on(e: 'update_failure', fn: (section: Config, err: PropertyException) => void): this;
    emit(e: 'reload', source: ConfigSource, values: RawValues): boolean;
    emit(e: 'reload_failure', source: ConfigSource, err: ConfigSourceException): boolean;
    emit(e: 'merge', source: ConfigSource, changes: Changes): boolean;
    emit(e: 'update', section: Config, keys: string[]): boolean;
    emit(e: 'update_failure', section: Config, err: PropertyException): boolean;
}