import { Method } from "../utils/Method";
import { DynamicValue, Listener, Unsubscriber } from "./DynamicValue";
/**
 * A [[DynamicValue]] that updates with the return of an HTTP request
 *
 * @example
 * ```javascript
 * new HttpValue({
 *     name:"test",
 *     method:"GET",
 *     base:"https://jsonplaceholder.typicode.com/",
 *     path:"todos",
 *     interval:2000
 * })
 * ```
 */
export declare class HttpValue implements DynamicValue<string> {
    method: Method;
    url: string;
    base: string;
    path: string;
    name: string | void;
    interval: number;
    __variant__: string;
    /**
     * @param base A base part of the URL
     * @param path The path added after the base
     */
    constructor({ name, method, base, path, interval }: {
        name?: string;
        method: Method;
        base: string;
        path: string;
        interval: number;
    });
    onValue(listener: Listener<string>): Unsubscriber;
    getValue(): Promise<string>;
    static fromJSON(json: {
        name?: string;
        method: Method;
        base: string;
        path: string;
        interval: number;
    }): HttpValue;
}