import BigNumber from '../../../../dependencies/src/bignumber.js-9.0.0/bignumber';
import { SubstrateNetwork } from '../../SubstrateNetwork';
import { SubstrateAccountInfo } from '../data/account/SubstrateAccountInfo';
import { SubstrateAddress } from '../data/account/SubstrateAddress';
import { SubstrateRegistration } from '../data/account/SubstrateRegistration';
import { SubstrateCall } from '../data/metadata/decorator/call/SubstrateCall';
import { SCALEAccountId } from '../data/scale/type/SCALEAccountId';
import { SCALEArray } from '../data/scale/type/SCALEArray';
import { SCALECompactInt } from '../data/scale/type/SCALECompactInt';
import { SCALEData } from '../data/scale/type/SCALEData';
import { SCALETuple } from '../data/scale/type/SCALETuple';
import { SubstrateActiveEraInfo } from '../data/staking/SubstrateActiveEraInfo';
import { SubstrateEraElectionStatus } from '../data/staking/SubstrateEraElectionStatus';
import { SubstrateEraRewardPoints } from '../data/staking/SubstrateEraRewardPoints';
import { SubstrateExposure } from '../data/staking/SubstrateExposure';
import { SubstrateNominations } from '../data/staking/SubstrateNominations';
import { SubstratePayee } from '../data/staking/SubstratePayee';
import { SubstrateSlashingSpans } from '../data/staking/SubstrateSlashingSpans';
import { SubstrateStakingLedger } from '../data/staking/SubstrateStakingLedger';
import { SubstrateValidatorPrefs } from '../data/staking/SubstrateValidatorPrefs';
import { SubstrateRuntimeVersion } from '../data/state/SubstrateRuntimeVersion';
import { SubstrateTransactionType } from '../data/transaction/SubstrateTransaction';
import { SubstrateNodeCache } from './SubstrateNodeCache';
export declare class SubstrateNodeClient {
    private readonly network;
    private readonly baseURL;
    private readonly cache;
    private metadata;
    private runtimeVersion;
    private readonly lastFees;
    private initApiPromise;
    constructor(network: SubstrateNetwork, baseURL: string, cache?: SubstrateNodeCache);
    getAccountInfo(address: SubstrateAddress): Promise<SubstrateAccountInfo | null>;
    getExistentialDeposit(): Promise<BigNumber>;
    getTransactionMetadata(type: SubstrateTransactionType): Promise<SubstrateCall>;
    getTransferFeeEstimate(transactionBytes: Uint8Array | string): Promise<BigNumber | null>;
    saveLastFee(type: SubstrateTransactionType, fee: BigNumber): void;
    getSavedLastFee(type: SubstrateTransactionType, defaultValue?: 'null' | 'largest'): BigNumber | null;
    getFirstBlockHash(): Promise<string | null>;
    getLastBlockHash(): Promise<string | null>;
    getCurrentHeight(): Promise<BigNumber>;
    getCurrentEraIndex(): Promise<BigNumber | null>;
    getRuntimeVersion(): Promise<SubstrateRuntimeVersion | null>;
    getBonded(address: SubstrateAddress): Promise<SubstrateAddress | null>;
    getNominations(address: SubstrateAddress): Promise<SubstrateNominations | null>;
    getRewardPoints(eraIndex: number): Promise<SubstrateEraRewardPoints | null>;
    getValidatorReward(eraIndex: number): Promise<BigNumber | null>;
    getStakersClipped(eraIndex: number, validator: SubstrateAddress): Promise<SubstrateExposure | null>;
    getRewardDestination(address: SubstrateAddress): Promise<SubstratePayee | null>;
    getStakingLedger(address: SubstrateAddress): Promise<SubstrateStakingLedger | null>;
    getValidators(): Promise<SubstrateAddress[] | null>;
    getValidatorExposure(eraIndex: number, address: SubstrateAddress): Promise<SubstrateExposure | null>;
    getElectionStatus(): Promise<SubstrateEraElectionStatus | null>;
    getIdentityOf(address: SubstrateAddress): Promise<SubstrateRegistration | null>;
    getSuperOf(address: SubstrateAddress): Promise<SCALETuple<SCALEAccountId, SCALEData> | null>;
    getSubsOf(address: SubstrateAddress): Promise<SCALETuple<SCALECompactInt, SCALEArray<SCALEAccountId>> | null>;
    getValidatorPrefs(eraIndex: number, address: SubstrateAddress): Promise<SubstrateValidatorPrefs | null>;
    getExpectedEraDuration(): Promise<BigNumber | null>;
    getActiveEraInfo(): Promise<SubstrateActiveEraInfo | null>;
    getSlashingSpan(address: SubstrateAddress): Promise<SubstrateSlashingSpans | null>;
    submitTransaction(encoded: string): Promise<string>;
    private getBlockHash;
    private fromStorage;
    private getCall;
    private getConstant;
    private initApi;
    private initCache;
    private send;
}