import type { HardhatRuntimeEnvironment } from "../types/hre.js";
import { createHardhatRuntimeEnvironment } from "@ignored/hardhat-vnext-core";
/**
 * This function returns a singleton instance of the Hardhat Runtime Environment.
 *
 * It exists so that the CLI and the programmatic API are always using the same HRE instance.
 *
 * Note: Only the params of the first call are used.
 */
export declare function getHardhatRuntimeEnvironmentSingleton(...params: Parameters<typeof createHardhatRuntimeEnvironment>): Promise<HardhatRuntimeEnvironment>;
/**
 * This function resets the singleton instance of the Hardhat Runtime Environment.
 *
 * It should be used only in tests.
 */
export declare function resetHardhatRuntimeEnvironmentSingleton(): void;
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