/**
 * Simple http client for json payloads.
 */
export type QueryParams<T extends Record<string, unknown>> = {
    [K in keyof T]: string;
};
export declare class HttpJson {
    private baseUrl;
    constructor(baseUrl: string);
    get(pathname: string, query?: Record<string, string>): Promise<Response>;
    post(pathname: string, bodyObj?: Record<string, unknown>): Promise<Response>;
    buildUrl(pathname: string, query?: Record<string, string>): string;
}
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