import type { Hex } from 'viem';
export { formatPrivateKey, isValidPrivateKey, validatePrivateKeyConfiguration } from './private-key.js';
export type WalletMode = 'private-key' | 'disabled';
export interface AppConfig {
    privateKey: string | undefined;
    walletMode: WalletMode;
    walletApiKey: string | undefined;
}
export declare const loadConfig: (environment?: Record<string, unknown>) => AppConfig;
export declare const config: AppConfig;
export declare function initializeConfig(environment?: Record<string, unknown>): AppConfig;
/**
 * Get the private key from environment variable as a Hex type for viem.
 * Returns undefined if the PRIVATE_KEY environment variable is not set.
 * @returns Private key from environment variable as Hex or undefined
 */
export declare function getPrivateKeyAsHex(): Hex | undefined;
/**
 * Check if wallet functionality is enabled based on configuration
 * @returns True if wallet functionality should be available
 */
export declare function isWalletEnabled(): boolean;
/**
 * Get the current wallet mode
 * @returns The configured wallet mode
 */
export declare function getWalletMode(): WalletMode;