import { JSONDef, Indicator, High, Low, Close } from "../types";
export interface TRArgs {
    prev: number;
}
export default class TR extends Indicator<TRArgs> {
    prev: number | null;
    constructor(prev?: number | null);
    next(value: number): number | null;
    nextBar(bar: High & Low & Close): number;
    reset(): void;
    toString(): string;
    toJSON(): JSONDef<TRArgs>;
    static readonly key = "finance.tr.TR";
    static minBars(): number;
    static display(): string;
    static from({ prev }: TRArgs): TR;
}