export type EmitterListener<TValue> = [TValue] extends [void] ? () => void : (value: TValue) => void;
type EmitterArgs<TValue> = [TValue] extends [void] ? [] : [TValue];
export declare class Emitter<TEvents extends Record<string, unknown>> {
    #private;
    constructor(onError: (name: keyof TEvents, error: unknown) => void);
    hook<TName extends keyof TEvents>(name: TName, listener: EmitterListener<TEvents[TName]>): () => void;
    has<TName extends keyof TEvents>(name: TName): boolean;
    off<TName extends keyof TEvents>(name: TName, listener: EmitterListener<TEvents[TName]>): void;
    clear(): void;
    emit<TName extends keyof TEvents>(name: TName, ...args: EmitterArgs<TEvents[TName]>): void;
}
export {};