import React from 'react';
export declare const PERF_UPDATE_SEC: number;
export declare const SAMPLE_HISTORY_HOURS: number;
export declare const TRANSACTION_COST: string;
export declare const MAINNET_ENDPOINT: string;
export declare const INTERNAL_MAINNET_ENDPOINT: string;
export declare function getRecentPerformanceSamples(abortSignal: AbortSignal, sampleHistoryHours: number, rpcNodeURL: string): Promise<number>;
export declare function displayRecentPerformanceSamples(abortSignal: AbortSignal, sampleHistoryHours: number, rpcNodeURL: string): Promise<React.ReactElement>;
export declare function getVoteAccounts(abortSignal: AbortSignal, rpcNodeURL: string): Promise<React.ReactElement>;
interface GetTransactionCounterProps {
    rpcNodeURL: string;
}
export declare const GetTransactionCounter: React.FC<GetTransactionCounterProps>;
export {};
