import * as z from "zod/v3";
import { SDKOptions } from "./config.js";
export interface Env {
    GR4VY_BEARER_AUTH?: string | undefined;
    /**
     * Sets the merchantAccountId parameter for all supported operations
     */
    GR4VY_MERCHANT_ACCOUNT_ID?: string | undefined;
    GR4VY_DEBUG?: boolean | undefined;
}
export declare const envSchema: z.ZodType<Env, z.ZodTypeDef, unknown>;
/**
 * Reads and validates environment variables.
 */
export declare function env(): Env;
/**
 * Clears the cached env object. Useful for testing with a fresh environment.
 */
export declare function resetEnv(): void;
/**
 * Populates global parameters with environment variables.
 */
export declare function fillGlobals(options: SDKOptions): SDKOptions;
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