import { HttpClient, type HttpClientOptions } from "@axelarjs/utils/http-client";
/**
 * Configuration options for creating an instance of `RestService`.
 * The type is a discriminated union based on the target ("browser" or "node").
 */
export type RestServiceOptions = {
    /**
     * The underlying HTTP client instance for browser, based on Ky.
     */
    instance: HttpClient;
    /**
     * Optional metadata like name and version for the client.
     * This is used to identify the client in the user-agent header.
     * If not provided, the default values are "HTTPClient" and "0.0.0".
     */
    meta?: ClientMeta;
} | {
    /**
     * The underlying HTTP client options.
     */
    clientOptions: HttpClientOptions;
    /**
     * Optional metadata like name and version for the client.
     * This is used to identify the client in the user-agent header.
     * If not provided, the default values are "HTTPClient" and "0.0.0".
     */
    meta?: ClientMeta;
};
/**
 * Metadata to provide additional information about the client.
 */
export type ClientMeta = {
    /**
     * The name of the client.
     */
    name: string;
    /**
     * The version of the client.
     */
    version: string;
};
/**
 * Abstract class that defines an REST service client.
 * This can be used both in browser and Node.js environments.
 */
export declare abstract class RestService {
    /**
     * The name of the Service.
     */
    name: string;
    /**
     * The version of the Service.
     */
    version: string;
    /**
     * The internal client instance
     */
    protected client: HttpClient;
    /**
     * Constructs a new instance of `RestServiceClient`.
     *
     * @param clientConfig - Configuration options for the client instance.
     * @param meta - Optional metadata like name and version for the client.
     */
    constructor(clientConfig: RestServiceOptions, meta?: ClientMeta);
}