import { Express } from 'express';
import { Transaction } from 'js-conflux-sdk';
import { SocketParams } from '../Logger';
import { WalletWrapper } from './wrapper';
/**
 * Leverages `JsonRpcEngine` to intercept account-related calls, and pass any other calls down to a destination
 * provider, e.g. Infura.
 */
export declare class WalletMiddlewareServer {
    expressServer: Express;
    wrapper: WalletWrapper;
    dictionaryEthCfx: {
        [K: string]: string;
    };
    rpcMethodHandlers: {
        [K: string]: any;
    };
    rpcParamsHandlers: {
        [K: string]: any;
    };
    constructor(url: string, networkId: number, privateKeys: string[], interleaveEpochs: number, defaultGas: BigInt, defaultGasPrice: number, estimateGasPrice: boolean, epochLabel: string, alwaysSynced: boolean);
    /**
     * Initializes the Express server, configures CORS, and passes requests back and forth between the Express server and
     * the `JsonRpcEngine`.
     */
    initialize(): this;
    /**
     * Tells the Express server to start listening.
     */
    listen(port: number, hostname?: string): Promise<this>;
    /**
     * Translate to Conflux the ADDRESS value
     *   that come as first parameter in some Eth methods.
     *   E.g.: eth_sign
     */
    paramsTranslateAddress(params: any[], socket: SocketParams): any[];
    /**
     * Translate to Conflux the ADDRESS and TAG parameters
     *   that come as first and second parameter in some Eth methods.
     *   E.g.:
     */
    paramsTranslateAddrAndTag(params: any[], socket: SocketParams): any[];
    /**
     * Translate to Conflux the TAG parameter that (optionally)
     *   comes as first parameter in some Eth methods.
     *   E.g.:
     */
    paramsTranslateTag(params: any[], socket: SocketParams): any[];
    /**
     * Translate to Conflux the TRANSACTION (object) and
     *   TAG (string) that come as first and second
     *   parameters in some Eth methods.
     *   E.g.:
     */
    paramsTranslateTxAndTag(params: any[], socket: SocketParams): any[];
    /**
     * Verbosely log incoming parameters.
     */
    traceParams(params: any[], socket: SocketParams): any[];
    /**
     * Lambda function to perform actual translation of Eth addresses to Conflux alphanumeric format.
     * See: https://github.com/Conflux-Chain/CIPs/blob/master/CIPs/cip-37.md
     */
    translateEthAddress(address: string): any;
    /**
     * Lambda function to perform actual translation of TAG parameter,
     *   from Eth to Conflux.
     */
    translateTag(tag: string): string;
    /**
     * Translate to Conflux the values of `from` and `tx` fields
     *   within passed Transaction object.
     */
    translateEthAddressesInTransaction(tx: Transaction): Transaction;
    /**
     * Recursively mutate Conflux response object as to make it readable by Eth clients.
     */
    translateCfxResponseObject(obj: any, socket: SocketParams): any;
}
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