import { z } from "zod";
export declare const gasStorageSchema: z.ZodObject<{
    country: z.ZodString;
    date: z.ZodOptional<z.ZodString>;
}, z.core.$strip>;
interface StorageData {
    country: string;
    date: string;
    gas_in_storage_twh: number;
    full_pct: number;
    injection_gwh: number;
    withdrawal_gwh: number;
    net_gwh: number;
    trend_vs_last_year_pct: number | null;
    working_volume_twh: number;
}
export declare function getGasStorage(params: z.infer<typeof gasStorageSchema>): Promise<StorageData>;
export {};