import { DifficultyCalculator } from '@rian8337/osu-difficulty-calculator';
import { DifficultyCalculator as DifficultyCalculator$1 } from '@rian8337/osu-rebalance-difficulty-calculator';

/**
 * Generates the strain chart of a difficulty calculator and returns the chart as a buffer.
 *
 * @param calculator The difficulty calculator to generate the strain graph for.
 * @param beatmapsetID The beatmapset ID to get background image from. If omitted, the background will be plain white.
 * @param color The color of the graph.
 */
declare function getStrainChart(calculator: DifficultyCalculator | DifficultyCalculator$1, beatmapsetID?: number, color?: string): Promise<Buffer | null>;

export { getStrainChart as default };