import SD, { SDArgs } from "../SD";
import { JSONDef, Indicator, Close } from "../types";
export interface BBArgs {
    period: number;
    multiplier: number;
    sd: SDArgs;
}
export interface Band {
    average: number;
    upper: number;
    lower: number;
}
export default class BB extends Indicator<BBArgs, Band> {
    period: number;
    multiplier: number;
    sd: SD;
    constructor(period?: number, multiplier?: number, sd?: SD);
    next(value: number): Band;
    nextBar(bar: Close): Band;
    reset(): void;
    toString(): string;
    toJSON(): JSONDef<BBArgs>;
    static readonly key = "finance.tr.BB";
    static minBars({ period, sd }: BBArgs): number;
    static display({ period, multiplier }: BBArgs, value?: string): string;
    static from({ period, multiplier, sd }: BBArgs): BB;
}