export interface IChartPoint {
    x: string | number;
    y: number;
}
export interface IProtocolConnectionHistoryPointLike {
    timestamp: number;
    total: number;
    protocols: Record<string, number>;
}
export type TProtocolChartSeries = Array<{
    name: string;
    data: IChartPoint[];
}>;
export declare const PROTOCOL_ORDER: readonly ["HTTP/1.1", "HTTP/2", "HTTP/3", "WebSocket", "Other"];
export declare const PROTOCOL_SERIES_ORDER: readonly ["Total Active", "HTTP/1.1", "HTTP/2", "HTTP/3", "WebSocket", "Other"];
export declare const getLatestHistoryEpochSecond: (historyArg: Array<{
    timestamp: number;
}>) => number;
export declare const mergeChartPoints: (localPointsArg: IChartPoint[], canonicalPointsArg: IChartPoint[], maximumPointsArg: number) => IChartPoint[];
export declare const createProtocolConnectionSeries: (historyArg?: IProtocolConnectionHistoryPointLike[]) => TProtocolChartSeries;
export declare const mergeProtocolConnectionHistory: (localSeriesArg: TProtocolChartSeries, canonicalHistoryArg: IProtocolConnectionHistoryPointLike[], maximumPointsArg: number) => TProtocolChartSeries;
export declare const getProtocolConnectionTotal: (protocolsArg: Record<string, number>) => number;
export declare const appendProtocolConnectionSample: (localSeriesArg: TProtocolChartSeries, timestampArg: string | number, protocolsArg: Record<string, number>, maximumPointsArg: number) => TProtocolChartSeries;
export declare const shouldRestartNetworkActivityTimer: (isConnectedArg: boolean, documentHiddenArg: boolean) => boolean;