import { BollingerBandsOptions } from '../../schemas/BollingerBandsOptionsSchema';
import { BollingerBandsResult } from '../../schemas/BollingerBandsResultSchema';
/**
 * Calculate Bollinger Bands
 *
 * Bollinger Bands consist of three lines:
 * - Middle Band: Simple Moving Average (SMA)
 * - Upper Band: SMA + (Standard Deviation × Multiplier)
 * - Lower Band: SMA - (Standard Deviation × Multiplier)
 *
 * Bollinger Bands are used to identify:
 * - Overbought conditions (price near upper band)
 * - Oversold conditions (price near lower band)
 * - Volatility expansion/contraction (bandwidth changes)
 *
 * @param options - Bollinger Bands calculation options
 * @returns Bollinger Bands calculation result
 *
 * @example
 * ```typescript
 * const prices = [10, 12, 11, 13, 14, 12, 15, 16, 14, 13];
 * const result = calculateBollingerBands({ prices, period: 3, stdDevMultiplier: 2 });
 * console.log(result.upperBand); // [14.16, 15.16, 16.16, ...]
 * console.log(result.middleBand); // [11, 12, 13, ...]
 * console.log(result.lowerBand); // [7.84, 8.84, 9.84, ...]
 * ```
 */
export declare function calculateBollingerBands(options: BollingerBandsOptions): BollingerBandsResult;