export type JsonValue = string | number | boolean | null | JsonValue[] | {
    [key: string]: JsonValue;
};
export interface FetchRequest {
    url: string;
    payload: JsonValue;
    timeout?: number;
    headers?: Record<string, string>;
}
export interface IJsonThreader {
    readonly stats: {
        pending: number;
        queued: number;
        available: number;
        total: number;
        processed: number;
        failed: number;
    };
    parse<T = JsonValue>(json: string): Promise<T>;
    parseBuffer<T = JsonValue>(buffer: ArrayBuffer): Promise<T>;
    stringify(data: JsonValue): Promise<string>;
    fetch<T = JsonValue>(request: FetchRequest): Promise<T>;
    terminate(): Promise<void>;
}