import { L1DepositParams, L1DepositResult, L1BridgeConfig } from '../types/api';
/**
 * L1 Bridge Client for handling Ethereum to Lighter L2 deposits
 * Uses ethers.js to interact with L1 contracts
 */
export declare class L1BridgeClient {
    private config;
    private provider;
    private usdcContract;
    private bridgeContract;
    private static readonly USDC_ABI;
    private static readonly BRIDGE_ABI;
    constructor(config: L1BridgeConfig);
    /**
     * Deposit USDC from L1 to L2
     * @param params - Deposit parameters
     * @returns Promise<L1DepositResult>
     */
    depositToL2(params: L1DepositParams): Promise<L1DepositResult>;
    /**
     * Check USDC balance for an address
     * @param address - Ethereum address
     * @returns Promise<string> - Balance in USDC units
     */
    getUSDCBalance(address: string): Promise<string>;
    /**
     * Check USDC allowance for bridge contract
     * @param address - Ethereum address
     * @returns Promise<string> - Allowance in USDC units
     */
    getUSDCAllowance(address: string): Promise<string>;
    /**
     * Get transaction status
     * @param txHash - Transaction hash
     * @returns Promise<L1DepositResult>
     */
    getTransactionStatus(txHash: string): Promise<L1DepositResult>;
    /**
     * Get default bridge configuration for mainnet
     * @returns L1BridgeConfig
     */
    static getMainnetConfig(): L1BridgeConfig;
    /**
     * Get default bridge configuration for testnet
     * @returns L1BridgeConfig
     */
    static getTestnetConfig(): L1BridgeConfig;
}
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