/**
 * Generates a smooth curve through a series of points with adjustable corner rounding.
 *
 * This function creates a `Path2D` object representing a curved line passing through the provided points.
 * The curve's corners are rounded based on the specified radius, which is dynamically adjusted
 * to fit between points and scaled according to the angle between segments.
 *
 * @param {Array<{x: number, y: number}>} points - The array of points through which the curve will pass.
 * Each point should be an object with `x` and `y` properties.
 *
 * @param {number} baseRadius - The base radius for rounding corners. The actual radius is adjusted
 * dynamically to ensure it fits between points and scales proportionally to the angle between segments.
 *
 * @returns {Path2D} A `Path2D` object representing the smoothed curve.
 *
 * @example
 * const points = [
 *   { x: 0, y: 0 },
 *   { x: 50, y: 100 },
 *   { x: 100, y: 50 },
 *   { x: 150, y: 150 },
 * ];
 * const radius = 20;
 * const path = curvePolyline(points, radius);
 * ctx.stroke(path);
 *
 * @remarks
 * - If the angle between segments is close to 180°, the rounding will be minimal.
 * - The radius is automatically reduced if it cannot fit between points.
 * - For two points, the function creates a straight line instead of a curve.
 */
export declare function curvePolyline(points: {
    x: number;
    y: number;
}[], baseRadius: number): Path2D;