import { Provider, TransactionResponse, TransactionReceipt } from 'ethers';
import { TraceResult } from './types';
/**
 * Get or create a provider from options
 */
export declare function getProvider(rpcUrl?: string, customProvider?: Provider, chainId?: number): Promise<{
    provider: Provider;
    chainId: number;
}>;
/**
 * Fetch transaction data
 */
export declare function fetchTransaction(provider: Provider, txHash: string): Promise<TransactionResponse>;
/**
 * Fetch transaction receipt
 */
export declare function fetchTransactionReceipt(provider: Provider, txHash: string): Promise<TransactionReceipt>;
/**
 * Fetch debug trace using debug_traceTransaction RPC method
 */
export declare function fetchDebugTrace(provider: Provider, txHash: string): Promise<TraceResult>;
/**
 * Get block timestamp
 */
export declare function getBlockTimestamp(provider: Provider, blockNumber: number): Promise<number>;
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