import { DeepReadonly } from 'ts-essentials';
import { PartialEventSubscriber } from '../../composed-event-subscriber';
import { Address, BlockHeader, Log, Logger, MultiCallInput, MultiCallOutput } from '../../types';
import { Lens } from '../../lens';
import { Interface } from '@ethersproject/abi';
import { BigNumber } from 'ethers';
import { PythState } from './types';
export declare class PythSubscriber<State> extends PartialEventSubscriber<State, PythState> {
    private proxy;
    private oracleIds;
    static readonly proxyInterface: Interface;
    static readonly ANSWER_UPDATED_TOPIC: string;
    constructor(proxy: Address, oracleIds: string[], lens: Lens<DeepReadonly<State>, DeepReadonly<PythState>>, logger: Logger);
    processLog(state: DeepReadonly<PythState>, log: Readonly<Log>, blockHeader: Readonly<BlockHeader>): DeepReadonly<PythState> | null;
    getGenerateStateMultiCallInputs(): MultiCallInput[];
    generateState(multicallOutputs: MultiCallOutput[], blockNumber?: number | 'latest'): DeepReadonly<PythState>;
    getLatestRoundData(state: DeepReadonly<State>, oracleId: string): number;
    _processPrice(price: BigNumber, expo: number): number;
}