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';
export type Api3FeedSubscriberState = {
    value: bigint;
    timestamp: bigint;
};
export declare class Api3FeedSubscriber<State> extends PartialEventSubscriber<State, Api3FeedSubscriberState> {
    private proxy;
    private dataFeedId;
    static readonly proxyInterface: Interface;
    static readonly api3ServerV1Iface: Interface;
    static readonly ANSWER_UPDATED_SIGNED_DATA: string;
    static readonly ANSWER_UPDATED_BEACON_SET_DATA: string;
    constructor(proxy: Address, api3Server: Address, dataFeedId: string, lens: Lens<DeepReadonly<State>, DeepReadonly<Api3FeedSubscriberState>>, logger: Logger);
    static getApi3ServerV1MultiCallInput(proxy: Address): MultiCallInput;
    static getDapiNameHashMultiCallInput(proxy: Address): MultiCallInput;
    static getDataFeedId(proxy: Address): MultiCallInput;
    static getFeedIdFromDapiNameHash(api3Server: Address, dapiNameHash: string): MultiCallInput;
    static decodeFeedIdFromDapiNameHash(multicallOutput: MultiCallOutput): any;
    static decodeDapiNameHash(multicallOutput: MultiCallOutput): any;
    static decodeDataFeedId(multicallOutput: MultiCallOutput): any;
    static decodeApi3ServerV1Result(multicallOutput: MultiCallOutput): Address;
    processLog(state: DeepReadonly<Api3FeedSubscriberState>, log: Readonly<Log>, blockHeader: Readonly<BlockHeader>): DeepReadonly<Api3FeedSubscriberState> | null;
    getGenerateStateMultiCallInputs(): MultiCallInput[];
    generateState(multicallOutputs: MultiCallOutput[], blockNumber?: number | 'latest'): DeepReadonly<Api3FeedSubscriberState>;
    getLatestData(state: DeepReadonly<State>): bigint;
}