export interface BoundingBox {
    x1: number;
    y1: number;
    x2: number;
    y2: number;
}
/**
 * Computes the axis-aligned bounding box of a set of points.
 * Returns null for an empty array.
 */
export declare function computeBoundingBox(points: ReadonlyArray<{
    x: number;
    y: number;
}>): BoundingBox | null;
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