import { JSONDef, Indicator, Close, Volume } from "../types";
export interface OBVArgs {
    obv: number;
    prevClose: number;
}
export default class OBV extends Indicator<OBVArgs> {
    obv: number;
    prevClose: number;
    constructor(obv?: number, prevClose?: number);
    next(): number;
    nextBar(bar: Close & Volume): number;
    reset(): void;
    toString(): string;
    toJSON(): JSONDef<OBVArgs>;
    static readonly key = "finance.tr.OBV";
    static minBars(): number;
    static display(): string;
    static from({ obv, prevClose }: OBVArgs): OBV;
}