import { Interface } from '@ethersproject/abi';
import { DeepReadonly } from 'ts-essentials';
import { PartialEventSubscriber } from '../../composed-event-subscriber';
import { Address, MultiCallInput, MultiCallOutput, Logger, Log, BlockHeader } from '../../types';
import { Lens } from '../../lens';
import { ChainLinkPriceFeedState } from './types';
export declare class ChainLinkPriceFeed<State> extends PartialEventSubscriber<State, ChainLinkPriceFeedState> {
    private chainLinkAddress;
    protected chainLinkInterface: Interface;
    constructor(chainLinkAddress: Address, lens: Lens<DeepReadonly<State>, DeepReadonly<ChainLinkPriceFeedState>>, logger: Logger);
    getUSDPrice(state: DeepReadonly<State>): bigint;
    processLog(state: DeepReadonly<ChainLinkPriceFeedState>, log: Readonly<Log>, blockHeader: Readonly<BlockHeader>): DeepReadonly<ChainLinkPriceFeedState> | null;
    getGenerateStateMultiCallInputs(): MultiCallInput[];
    generateState(multicallOutputs: MultiCallOutput[], blockNumber?: number | 'latest'): DeepReadonly<ChainLinkPriceFeedState>;
}