/**
 * Source: https://github.com/OpenZeppelin/openzeppelin-upgrades
 */
/**
 * The response body from an Etherscan API call.
 */
interface EtherscanResponseBody {
    status: string;
    message: string;
    result: any;
}
export declare const RESPONSE_OK = "1";
/**
 * Call the configured Etherscan API with the given parameters.
 */
export declare function callEtherscanApi(instance: {
    apiUrl: string;
    apiKey: string;
}, params: any): Promise<EtherscanResponseBody>;
export {};
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