import { type Aptos, type UserTransactionResponse } from '@aptos-labs/ts-sdk';
import type { LogFilter } from '../chain.ts';
import type { ChainLog } from '../types.ts';
/**
 * Fetches a user transaction by its version number.
 * @param provider - Aptos provider instance.
 * @param version - Transaction version number.
 * @returns User transaction response.
 */
export declare function getUserTxByVersion(provider: Aptos, version: number): Promise<UserTransactionResponse>;
/**
 * Gets the timestamp for a given transaction version.
 * @param provider - Aptos provider instance.
 * @param version - Positive version number, negative block depth finality, or 'finalized'.
 * @returns Epoch timestamp in seconds.
 */
export declare function getVersionTimestamp(provider: Aptos, version: number | 'finalized'): Promise<number>;
/**
 * Streams logs from the Aptos blockchain based on filter options.
 * @param provider - Aptos provider instance.
 * @param opts - Log filter options.
 * @returns Async generator of log entries.
 */
export declare function streamAptosLogs(ctx: {
    provider: Aptos;
}, opts: LogFilter & {
    versionAsHash?: boolean;
}): AsyncGenerator<ChainLog>;
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