/// <reference types="node" />
import Account from 'ethereumjs-account';
import { Dictionary } from 'ts-essentials';
import { CheckpointMap } from './CheckpointMap';
import { Address } from '../../primitives/Address';
import { Hash, Quantity } from '../../primitives';
/**
 * Holds account, code, storage state in memory.
 * Pretends to maintain trie like structure by generating fake state roots and load them as snapshots when needed
 */
export declare class DethStateManger {
    private accountsState;
    private codeState;
    private storageState;
    private savedAccountsState;
    private savedCodeState;
    private savedStorageState;
    private saveIndex;
    constructor(accountsState?: CheckpointMap<Account, Address>, codeState?: CheckpointMap<Buffer, Hash>, storageState?: CheckpointMap<Dictionary<Buffer>, Address>, savedAccountsState?: CheckpointMap<CheckpointMap<Account>, Hash>, savedCodeState?: CheckpointMap<CheckpointMap<Buffer>, Hash>, savedStorageState?: CheckpointMap<CheckpointMap<Dictionary<Buffer>, Address>, Hash>, saveIndex?: number);
    copy(): DethStateManger;
    getAccount(address: Address): Account;
    putAccount(address: Address, account: Account): void;
    putContractCode(address: Address, code: Buffer): void;
    getContractCode(address: Address): Buffer;
    getContractStorage(address: Address, key: Quantity): Buffer;
    putContractStorage(address: Address, key: Quantity, value: Buffer): void;
    clearContractStorage(address: Address): void;
    checkpoint(): void;
    commit(): void;
    revert(): void;
    getStateRoot(): Hash;
    setStateRoot(root: Hash): void;
    isAccountEmpty(address: Address): boolean;
}