import { BigNumber } from '../utils/bignumber';
import { Arrayish } from '../utils/bytes';
import { BigNumberish } from '../utils/bignumber';
import { Network } from '../utils/networks';
import { OnceBlockable } from '../utils/web';
import { Transaction } from '../utils/transaction';
export interface Block {
    hash: string;
    parentHash: string;
    number: number;
    timestamp: number;
    nonce: string;
    difficulty: number;
    gasLimit: BigNumber;
    gasUsed: BigNumber;
    miner: string;
    extraData: string;
    transactions: Array<string>;
}
export declare type BlockTag = string | number;
export declare type Filter = {
    fromBlock?: BlockTag;
    toBlock?: BlockTag;
    address?: string;
    topics?: Array<string | Array<string>>;
};
export interface Log {
    blockNumber?: number;
    blockHash?: string;
    transactionIndex?: number;
    removed?: boolean;
    transactionLogIndex?: number;
    address: string;
    data: string;
    topics: Array<string>;
    transactionHash?: string;
    logIndex?: number;
}
export interface TransactionReceipt {
    contractAddress?: string;
    transactionIndex?: number;
    root?: string;
    gasUsed?: BigNumber;
    logsBloom?: string;
    blockHash?: string;
    transactionHash?: string;
    logs?: Array<Log>;
    blockNumber?: number;
    cumulativeGasUsed?: BigNumber;
    byzantium: boolean;
    status?: number;
}
export declare type TransactionRequest = {
    to?: string | Promise<string>;
    from?: string | Promise<string>;
    nonce?: number | string | Promise<number | string>;
    gasLimit?: BigNumberish | Promise<BigNumberish>;
    gasPrice?: BigNumberish | Promise<BigNumberish>;
    data?: Arrayish | Promise<Arrayish>;
    value?: BigNumberish | Promise<BigNumberish>;
    chainId?: number | Promise<number>;
};
export interface TransactionResponse extends Transaction {
    blockNumber?: number;
    blockHash?: string;
    timestamp?: number;
    from: string;
    raw?: string;
    wait: (timeout?: number) => Promise<TransactionReceipt>;
}
export declare type EventType = string | Array<string> | Filter;
export declare type Listener = (...args: Array<any>) => void;
export declare abstract class Provider implements OnceBlockable {
    abstract getNetwork(): Promise<Network>;
    abstract getBlockNumber(): Promise<number>;
    abstract getGasPrice(): Promise<BigNumber>;
    abstract getBalance(addressOrName: string | Promise<string>, blockTag?: BlockTag | Promise<BlockTag>): Promise<BigNumber>;
    abstract getTransactionCount(addressOrName: string | Promise<string>, blockTag?: BlockTag | Promise<BlockTag>): Promise<number>;
    abstract getCode(addressOrName: string | Promise<string>, blockTag?: BlockTag | Promise<BlockTag>): Promise<string>;
    abstract getStorageAt(addressOrName: string | Promise<string>, position: BigNumberish | Promise<BigNumberish>, blockTag?: BlockTag | Promise<BlockTag>): Promise<string>;
    abstract sendTransaction(signedTransaction: string | Promise<string>): Promise<TransactionResponse>;
    abstract call(transaction: TransactionRequest): Promise<string>;
    abstract estimateGas(transaction: TransactionRequest): Promise<BigNumber>;
    abstract getBlock(blockHashOrBlockTag: BlockTag | string | Promise<BlockTag | string>): Promise<Block>;
    abstract getTransaction(transactionHash: string): Promise<TransactionResponse>;
    abstract getTransactionReceipt(transactionHash: string): Promise<TransactionReceipt>;
    abstract getLogs(filter: Filter): Promise<Array<Log>>;
    abstract resolveName(name: string | Promise<string>): Promise<string>;
    abstract lookupAddress(address: string | Promise<string>): Promise<string>;
    abstract on(eventName: EventType, listener: Listener): Provider;
    abstract once(eventName: EventType, listener: Listener): Provider;
    abstract listenerCount(eventName?: EventType): number;
    abstract listeners(eventName: EventType): Array<Listener>;
    abstract removeAllListeners(eventName: EventType): Provider;
    abstract removeListener(eventName: EventType, listener: Listener): Provider;
    abstract waitForTransaction(transactionHash: string, timeout?: number): Promise<TransactionReceipt>;
    constructor();
    static isProvider(value: any): value is Provider;
}