import { MFI as MFIIndicator } from 'technicalindicators';
import { OHLC } from '../types';
import { IndicatorInput, Indicator } from './base-indicator';
export interface MoneyFlowIndexInput extends IndicatorInput {
    period?: number;
}
/**
 * The Money Flow Index (MFI) is a technical oscillator that uses price
 * and volume data for identifying overbought or oversold signals in an
 * asset. It can also be used to spot divergences which warn of a trend
 * change in price. The oscillator moves between 0 and 100. Unlike
 * conventional oscillators such as the Relative Strength Index (RSI),
 * the Money Flow Index incorporates both price and volume data, as opposed
 * to just price. For this reason, some analysts call MFI the volume-weighted
 * RSI.
 */
export declare class MFI implements Indicator {
    indicator: MFIIndicator;
    /**
     * @param {OHLC[]} series candles series
     * @param {number} period period for indicator
     */
    constructor(series: OHLC[], period?: number);
    /**
     * Retrieve MFI values for instance
     * @return {number[]} values for instance data
     */
    getResults(): number[];
    /**
     * Calculate MFI to next tick
     * @param {OHLC} candle new candle to add to series
     * @return {number | undefined} next MFI value or undefined if period is
     * greater than actual series length
     */
    next(candle: OHLC): number | undefined;
    /**
     * Create instance from data
     * @param {MoneyFlowIndexInput} input input data
     * @return {MFI} MFI instance
     */
    static generator({ series, period }: MoneyFlowIndexInput): MFI;
    /**
     * Get MFI values from input
     * @param {MoneyFlowIndexInput} input input data
     * @return {number[]} MFI values
     */
    static calculate({ series, period, }: MoneyFlowIndexInput): number[];
}