import { Provider } from "@ethersproject/providers";
import { ChainId, SUPPORTED_CHAIN_ID } from "../common/chain";
/**
 * Fallback map of default block mining times in seconds.

 */
export declare const DEFAULT_BLOCK_TIMES_FALLBACK: Record<SUPPORTED_CHAIN_ID | ChainId.Hardhat, {
    secondsBetweenBlocks: number;
    synced: boolean;
}>;
/**
 * Given a time in second, return the block number that the time is in.
 *
 * @param timeInEpochSeconds - The time in seconds.
 * @param chainId - The chain id.
 * @returns - The block number.
 */
export declare function estimateBlockAtTime(timeInEpochSeconds: number, provider: Provider): Promise<number>;